Lock Washers

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Lock washers are used for creating tight assemblies with ordinary fasteners. Raptor Supplies offers a wide range of lock washers from brands like Unistrut, ...Read more

APPROVED VENDOR -

Plain Grade 410 Stainless Steel External Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceFor Screw SizeClassPricePkg. Qty.
AU53460.011.0001#40.115"0.245"Rockwell C40-C500.012"0.012" to 0.018"#4Not Applicable€2.3950
B1NY46#40.123"0.26"Rockwell C400.018"0.012" to 0.018"#4Not Applicable€7.24100
CU53460.013.0001#60.141"0.305"Rockwell C400.016"0.016" to 0.022"#6Not Applicable€2.0150
DU53460.016.0001#80.168"0.365"Rockwell C400.018"-#8Not Applicable€3.1750
EU53460.019.0001#100.195"0.395"Rockwell C400.018 ft.--Not Applicable€4.5550
FU53460.050.00011/2"0.513"22/25"Rockwell C400.037"--Not Applicable€3.6510
GU53460.025.00011/4"0.256"0.494"Rockwell C400.023"0.023" to 0.028"1/4"Not Applicable€12.7650
HU53460.075.00013/4"0.768"1.22"Rockwell C400.047"--Not Applicable€6.085
IU53460.037.00013/8"0.398"0.694"Rockwell C401/25"0.032" to 0.04"-Not Applicable€19.2250
JU53460.062.00015/8"0.641"1.045"Rockwell C400.042"-5/8"Not Applicable€16.3610
KU53460.031.00015/16"8/25"0.588"Rockwell C400.028"-5/16"Not Applicable€8.7750
LU53460.043.00017/16"0.448"0.74"Rockwell C400.032"0.032" to 0.04"7/16"Not Applicable€14.0725
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Zinc Plated Steel External Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceFor Screw SizeClassPricePkg. Qty.
AB37420.013.0001#20.141"0.305"-0.016"---€993.2290000
BB37420.016.0001#30.168"0.365"-0.018"---€565.4950000
CU37420.011.0001#40.123"0.26"Rockwell C40-C500.018"-#4Not Applicable€2.11100
DB37420.031.0001#48/25"0.588"-0.028"---€696.6722700
EB37420.019.0001#40.195"0.395"-0.018"---€890.7950000
FB37420.062.0001#40.641"1.045"-0.042"---€910.895000
GB37420.037.0001#50.384"0.67"-0.032"---€885.9314450
HB37420.075.0001#60.768"1.22"-0.047"---€899.603330
I6DZC4#60.15"8/25"Rockwell C40-C500.022"-0.006"#6Not Applicable€8.21100
JU37420.013.0001#60.15"8/25"Rockwell C40-C500.022"-#6Not Applicable€1.79100
KB37420.043.0001#60.448"0.74"-0.032"---€1,342.1612500
LB37420.050.0001#80.513"22/25"-0.037"---€703.446750
MU37420.016.0001#80.176"0.381"Rockwell C40-C500.023"-#8Not Applicable€1.91100
I6DZC5#80.176"0.381"Rockwell C40-C500.023"-0.005"#8Not Applicable€5.02100
NU37420.019.0001#100.204"0.41"Rockwell C40-C500.024"-#10Not Applicable€1.98100
OB37420.056.0001#100.576"24/25"-0.037"---€1,297.306325
PB37420.011.0001#120.115"0.245"-0.012"---€1,021.9390000
QU37420.050.00011/2"0.513"22/25"Rockwell C40-C500.037"-1/2"Not Applicable€4.3025
RU37420.075.00013/4"0.768"1.22"Rockwell C40-C500.047"-3/4"Not Applicable€5.0810
SU37420.037.00013/8"0.384"0.67"Rockwell C40-C500.032"-3/8"Not Applicable€5.0950
TU37420.062.00015/8"0.641"1.045"Rockwell C40-C500.042"-5/8"Not Applicable€3.5010
UU37420.031.00015/16"0.332"0.61"Rockwell C40-C500.034"-5/16"Not Applicable€5.42100
VU37420.043.00017/16"0.448"0.74"Rockwell C40-C500.032"-7/16"Not Applicable€3.0725
WU37420.056.00019/16"0.576"24/25"Rockwell C40-C500.037"-9/16"Not Applicable€5.8825
XM37480.030.0001M33.2 mm6 mm-0.4 mm-M3Not Applicable€4.40100
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Plain Phosphor Bronze Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceFor Screw SizeClassPricePkg. Qty.
AU50462.008.0001#20.095"1/5"Rockwell B900.015"0.01" to 0.016"#2Not Applicable€6.41100
BB50462.037.0001#20.384"0.67"-0.032"---€7,400.0913150
CB50462.008.0001#20.089"0.172"-0.01"---€6,289.9190000
DB50462.050.0001#30.512"0.867"-0.037"---€8,020.546750
EB50462.011.0001#30.115"0.245"-0.012"---€8,039.1290000
FU50462.011.0001#40.123"0.27"Rockwell B900.018"0.012" to 0.018"#4Not Applicable€13.14100
GB50462.013.0001#40.141"0.275"-0.016"---€8,859.3490000
HB50462.016.0001#60.168"0.325"-0.018"---€5,237.3850000
IU50462.013.0001#60.15"0.295"Rockwell B900.02"0.016" to 0.022"#6Not Applicable€12.12100
JU50462.016.0001#80.176"0.34"Rockwell B900.023"0.018" to 0.023"#8Not Applicable€12.46100
KB50462.019.0001#80.195"0.365"-0.018"---€10,826.4050000
LU50462.019.0001#100.204"0.381"Rockwell B900.024"0.018" to 0.024"#10Not Applicable€29.91100
MB50462.031.0001#128/25"0.594"-0.028"---€11,134.7317200
NU50462.050.00011/2"0.53"0.9"Rockwell B900.045"0.037" to 0.045"1/2"Not Applicable€29.7925
OU50462.025.00011/4"0.256"0.46"Rockwell B900.023"0.023" to 0.028"-Not Applicable€33.52100
PB50462.025.00011/4"0.256"0.46"-0.023"---€7,961.5337000
QU50462.037.00013/8"0.398"0.692"Rockwell B901/25"0.032" to 0.04"3/8"Not Applicable€44.1150
RU50462.031.00015/16"8/25"0.594"Rockwell C500.028"-5/16"Not Applicable€74.29100
StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessFor Screw SizeColorTypeMaterialPricePkg. Qty.
AM37080.050.0001M55.1 mm9.2 mm1 mmM5SilverCurved Split LockSpring Steel€8.33100
AM37080.060.0001M66.1 mm11.8 mm1.3 mmM6SilverCurved Split LockSpring Steel€12.37100
AM37080.080.0001M88.1 mm14.8 mm1.6 mmM8SilverCurved Split LockSpring Steel€19.46100
AM37080.100.0001M1010.2 mm18.1 mm1.8 mmM10SilverCurved Split LockSpring Steel€40.85100
AM37080.120.0001M1212.2 mm21.1 mm2.1 mmM12SilverCurved Split LockSpring Steel€41.37100
AM37080.160.0001M1616.2 mm27.4 mm2.8 mmM16SilverCurved Split LockSpring Steel€46.7250
AM37080.200.0001M2020.2 mm33.6 mm3.2 mmM20SilverCurved Split LockSpring Steel€80.2950
NORD-LOCK -

Plain Grade 316 Stainless Steel Wedge Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceFor Screw SizeColorPricePkg. Qty.
A1090-0.34"0.65"Rockwell C522/25"-0.01" to +0.01"5/16"Silver€1,321.06200
B1069#50.13"7/25"Rockwell C460.09"-0.01" to +0.01"#5Silver€1,037.32200
A1071#60.15"0.35"Rockwell C520.09"-0.01" to +0.01"#6Silver€1,109.86200
B1070#60.15"0.3"Rockwell C520.09"-0.01" to +0.01"#6Silver€1,054.14200
A1074#80.17"0.35"Rockwell C520.09"-0.01" to +0.01"#8Silver€1,038.26200
B1072#80.17"0.3"Rockwell C520.09"-0.01" to +0.01"#8Silver€1,032.52200
A1079#100.21"0.43"Rockwell C520.09"-0.01" to +0.01"#10Silver€1,065.82200
B1075#100.21"0.35"Rockwell C520.09"-0.01" to +0.01"#10Silver€1,017.20200
B28071 1/2"1.59"2.3"Rockwell C520.27"-0.02" to +0.02"1 1/2"Silver€3,519.1025
B27331 1/4"1.35"1.91"Rockwell C520.27"-0.02" to +0.02"1 1/4"Silver€2,215.4725
A27451 1/8"1 6/25"2.3"Rockwell C520.27"-0.02" to +0.02"1 1/8"Silver€3,486.7025
B27221 1/8"1 6/25"1.85"Rockwell C520.27"-0.02" to +0.02"1 1/8"Silver€3,988.6750
B29021 3/4"1.82"2 19/25"Rockwell C520.27"-0.03" to +0.03"1 3/4"Silver€501.381
B27321 3/8"1.47"2.17"Rockwell C520.27"-0.02" to +0.02"1 3/8"Silver€2,935.9525
A27461"1.1"1.91"Rockwell C520.13"-0.01" to +0.01"1"Silver€4,270.8950
B27341"1.1"1.54"Rockwell C520.13"-0.01" to +0.01"1"Silver€3,706.27100
A11101/2"0.53"1"Rockwell C520.13"-0.01" to +0.01"1/2"Silver€2,027.25100
B21491/2"0.53"0.77"Rockwell C520.09"-0.01" to +0.01"1/2"Silver€1,799.10200
A10861/4"7/25"0.53"Rockwell C520.09"-0.01" to +0.01"1/4"Silver€1,184.19200
B10851/4"7/25"0.45"Rockwell C520.09"-0.01" to +0.01"1/4"Silver€1,071.51200
B29072 1/2"2 16/25"3.74"Rockwell C520.35"-0.03" to +0.03"2 1/2"Silver€1,281.301
B29052 1/4"2.33"3.35"Rockwell C520.35"-0.03" to +0.03"2 1/4"Silver€1,316.851
B29042"2.11"3.15"Rockwell C520.35"-0.03" to +0.03"2"Silver€1,168.481
B29103"3.11"4.33"Rockwell C520.35"-0.03" to +0.03"-Silver€1,394.441
B11213/4"0.79"1.21"Rockwell C520.13"-0.01" to +0.01"3/4"Silver€2,496.59100
ARMOR COAT -

Armor Coat Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessFor Screw SizeHardnessColorThickness TolerancePricePkg. Qty.
AUST2360501/2"0.512"0.879"1/8"1/2"Rockwell C33-C39Silver-0.006" to +0.006"€12.4625
BUST2360461/4"0.26"0.489"1/16"1/4"Rockwell C33-C39Silver-0.006" to +0.006"€11.00100
CUST2360523/4"0.766"1.285"3/16"3/4"Rockwell C33-C39Silver-0.006" to +0.006"€24.1520
DUST2360483/8"0.385"11/16"3/32"3/8"Rockwell C33-C39Silver-0.006" to +0.006"€12.3550
EUST2360515/8"0.641"1.087"0.156"5/8"Rockwell C33-C39Silver-0.006" to +0.006"€24.6425
FUST2360475/16"0.322"0.593"0.0781"5/16"Rockwell C33-C39Silver-0.006" to +0.006"€5.8050
GUST2360497/16"0.45"0.784"0.109"7/16"Rockwell C33-C39Silver-0.006" to +0.006"€9.3425
APPROVED VENDOR -

Plain Grade A2 Stainless Steel External Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessFor Screw SizeClassPricePkg. Qty.
AM51456.030.0001M33.2 mm6 mmRockwell C400.4 mmM3Not Applicable€2.3450
BM51460.030.0001M33.2 mm6 mm-0.4 mmM3Not Applicable€2.8050
CM51456.040.0001M44.3 mm8 mm-0.5 mmM4Not Applicable€2.0250
DM51460.040.0001M44.3 mm8 mm-0.5 mmM4Not Applicable€1.9450
EM51460.051.0001M55.1 mm9 mm-0.5 mmM5Not Applicable€9.7450
FM51460.050.0001M55.3 mm10 mm-0.6 mmM5Not Applicable€2.7450
GM51456.050.0001M55.3 mm10 mm-0.6 mmM5Not Applicable€3.7750
HM51456.060.0001M66.4 mm11 mm-0.7 mmM6Not Applicable€3.7950
IM51460.060.0001M66.4 mm11 mm-0.7 mmM6Not Applicable€6.3850
JM51456.080.0001M88.4 mm15 mm-0.8 mmM8Not Applicable€6.2050
KM51460.080.0001M88.4 mm15 mm-0.8 mm-Not Applicable€5.9450
EM51460.082.0001M88.2 mm14 mm-0.8 mmM8Not Applicable€7.8950
LM51456.100.0001M1010.5 mm18 mm-0.9 mmM10Not Applicable€6.9350
EM51460.100.0001M1010.5 mm18 mm-0.9 mm to 2.7 mmM10Not Applicable€7.1450
MM51456.120.0001M1213 mm20.5 mm-1 mmM12Not Applicable€3.6625
NM51460.120.0001M1213 mm20.5 mmRockwell C38-C461 mmM12Not Applicable€5.8125
OM51456.140.0001M1415 mm24 mm-1 mmM14Not Applicable€5.5125
PM51456.160.0001M1617 mm26 mm-1.2 mm to 2.4 mmM16Not Applicable€5.6310
EM51460.160.0001M1617 mm26 mm-1.2 mm to 3.6 mmM16Not Applicable€4.3310
QM51460.200.0001M2021 mm33 mm-1.4 mmM20Not Applicable€6.705
RM51460.240.0001M2425 mm38 mm-1.5 mmM24Not Applicable€5.325
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Zinc Plated Steel Internal and External Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessFor Screw SizeClassHardnessPricePkg. Qty.
AB37590.050.0001#40.512"1.38"0.052"---€3,848.246750
BB37590.037.0001#120.384"1 1/8"0.042"---€3,461.5613150
CU37590.050.00011/2"0.512"1.38"0.052"1/2"Not ApplicableRockwell C40-C50€13.9625
DU37590.037.00013/8"0.384"1 1/8"0.042"3/8"Not ApplicableRockwell C40-C50€12.8750
APPROVED VENDOR -

Zinc Plated Grade 2 Steel Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceFor Screw SizeClassPricePkg. Qty.
AU37480.100.00011"1.019"1.59"Rockwell C38-C460.059"0.059" to 0.067"1"Not Applicable€10.535
BU37480.025.00011/4"0.267"0.478"Rockwell C40-C500.028"0.023" to 0.028"1/4"Not Applicable€5.05100
CU37480.087.00017/8"0.894"1.364"Rockwell C38-C460.052"0.052" to 0.06"7/8"Not Applicable€7.435
DU37480.043.00017/16"0.448"0.74"Rockwell C40-C500.032"0.032" to 0.04"7/16"Not Applicable€6.5925
EU37480.056.00019/16"0.576"0.957"Rockwell C38-C460.037"0.037" to 0.045"9/16"Not Applicable€12.6625
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Plain Phosphor Bronze External Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceFor Screw SizeClassPricePkg. Qty.
AB50450.011.0001#20.115"0.245"-0.012"---€7,763.8690000
BU50450.011.0001#40.123"0.26"Rockwell B900.018"0.012" to 0.018"#4Not Applicable€12.18100
CB50450.013.0001#40.141"0.305"-0.016"---€7,821.4190000
DB50450.016.0001#60.168"0.365"-0.018"---€9,174.0050000
EU50450.013.0001#60.15"8/25"Rockwell B900.022"0.016" to 0.022"#6Not Applicable€8.92100
AB50450.037.0001#60.384"0.67"-0.032"---€7,505.1814450
AB50450.019.0001#80.195"0.395"-0.018"---€10,817.0150000
FU50450.016.0001#80.176"0.381"Rockwell B900.023"0.018" to 0.023"#8Not Applicable€23.11100
GU50450.019.0001#100.204"0.41"Rockwell B900.024"0.018" to 0.024"#10Not Applicable€29.99100
HB50450.025.0001#100.256"0.494"-0.023"---€7,886.7332200
AB50450.050.0001#100.513"22/25"-0.037"---€10,985.726750
IU50450.050.00011/2"0.53"0.9"Rockwell B900.045"0.037" to 0.045"1/2"Not Applicable€50.3925
JU50450.025.00011/4"0.267"0.51"Rockwell B900.028"0.023" to 0.028"1/4"Not Applicable€28.27100
KU50450.037.00013/8"0.384"0.67"Rockwell C500.032"-3/8"Not Applicable€41.0650
KU50450.031.00015/16"8/25"0.588"Rockwell C500.028"-5/16"Not Applicable€42.88100
APPROVED VENDOR -

Plain Grade 410 Stainless Steel Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessColorThickness ToleranceFor Screw SizeClassPricePkg. Qty.
AU53462.008.0001#20.089"0.172"0.01"--#2Not Applicable€7.4050
BU53462.009.0001#30.102"0.215"0.01"--#3Not Applicable€3.5950
CU53462.011.0001#40.115"0.245"0.012"Silver0.012" to 0.018"#4Not Applicable€3.0150
DU53462.013.0001#60.141"0.275"0.016"Silver0.016" to 0.022"#6Not Applicable€6.0350
EU53462.016.0001#80.168"0.325"0.018"Silver0.018" to 0.023"#8Not Applicable€11.4250
FU53462.019.0001#100.195"0.365"0.018"Silver0.018" to 0.024"#10Not Applicable€3.8550
GU53462.021.0001#120.221"0.394"0.02"Silver0.02" to 0.027"#12Not Applicable€4.4950
HU53462.050.00011/2"0.512"0.867"0.037"Black-0.004" to +0.004"1/2"Not Applicable€4.4510
IU53462.025.00011/4"0.256"0.46"0.023"--1/4"Not Applicable€6.5750
JU53462.075.00013/4"0.769"1.22"0.047"Black-0.004" to +0.004"3/4"Not Applicable€4.845
KU53462.037.00013/8"0.384"0.67"0.032"--3/8"Not Applicable€13.6250
LU53462.062.00015/8"16/25"1.045"0.042"--0.004" to +0.004"-Not Applicable€25.1210
MU53462.031.00015/16"8/25"0.594"0.028"--5/16"Not Applicable€10.0050
NU53462.043.00017/16"0.448"0.74"0.032"--7/16"Not Applicable€14.1325
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Plain Silicon Bronze Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness ToleranceFor Screw SizeClassHardnessPricePkg. Qty.
AB43150.025.0001#40.252"0.487"1/16"----€2,766.659300
B1NU87#43/25"0.209"0.025"+0.025"#4Not ApplicableRockwell B90€6.94100
CB43150.037.0001#60.377"17/25"3/32"----€2,322.993400
DU43150.013.0001#60.141"1/4"0.031"Not Rated#6-Rockwell B90€10.42100
E1NU88#60.148"1/4"0.031"+0.031"#6Not ApplicableRockwell B90€10.50100
FB43150.019.0001#80.193"0.334"0.047"----€6,087.7430300
GB43150.050.0001#80.502"0.869"1/8"----€4,214.231650
DU43150.016.0001#80.167"0.293"1/25"-#8-Rockwell B90€20.99100
HU43150.019.0001#100.193"0.334"0.047"-#10Not ApplicableRockwell B90€56.76100
IB43150.021.0001#100.22"0.377"0.056"----€7,534.6616600
JB43150.062.0001#100.628"1.073"0.156"----€4,618.48900
DU43150.021.0001#120.22"0.377"0.056"-#12Not ApplicableRockwell B90€51.78100
DU43150.050.00011/2"0.502"0.869"1/8"-1/2"Not ApplicableRockwell B90€62.9225
DU43150.025.00011/4"0.252"0.487"1/16"-1/4"Not ApplicableRockwell B90€80.48100
KU43150.037.00013/8"0.377"17/25"3/32"-3/8"Not ApplicableRockwell B90€83.3250
LU43150.075.00015/8"0.766"1.265"0.156"+0.188"3/4"Not ApplicableRockwell B90€62.4310
DU43150.062.00015/8"0.628"1.073"0.156"-5/8"Not ApplicableRockwell B90€58.4210
DU43150.031.00015/16"0.314"0.583"0.0781"-5/16"-Rockwell B90€61.90100
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Galvanized Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessFor Screw SizeClassColorPricePkg. Qty.
AB37025.150.0001#41.504"2.419"-3/8"---€350.7875
BB37025.043.0001#411/25"0.77"-0.109"---€325.942325
CB37025.175.0001#61.758"2.679"-0.389"---€490.7765
DB37025.112.0001#81.129"1.847"-0.281"---€389.95175
EB37025.200.0001#82.008"2.936"-0.422"---€493.5845
FB37025.250.0001#102.512"3.471"-11/25"---€418.2130
GB37025.087.0001#120.878"1.459"-0.219"---€271.54350
HB37025.137.0001#121.379"2.219"-0.344"---€550.39100
IU37025.125.00011 1/4"1.254"2.036"Rockwell C40-C500.312"1 1/4"Not Applicable-€16.345
JU37025.112.00011 1/8"1.129"1.847"Rockwell C38-C460.281"1 1/8"Not Applicable-€14.895
KU37025.100.00011"1.003"1.656"Rockwell C38-C461/4"1"Not ApplicableSilver€7.245
LU37025.050.00011/2"0.502"0.869"Rockwell C38-C461/8"1/2"Not ApplicableSilver€5.3925
MU37025.025.00011/4"0.26"0.487"Rockwell C351/16"1/4"Not ApplicableSilver€4.05100
NU37025.075.00013/4"0.753"1.265"Rockwell C323/16"3/4"Not ApplicableSilver€6.1710
OU37025.037.00013/8"0.377"17/25"Rockwell C353/32"3/8"Not ApplicableSilver€6.1350
PU37025.062.00015/8"0.628"1.073"Rockwell C38-C460.156"5/8"Not ApplicableSilver€3.6910
QU37025.087.00017/8"0.878"1.459"Rockwell C38-C460.219"7/8"Not Applicable-€5.475
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Zinc Plated Steel Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessColorThickness ToleranceFor Screw SizePricePkg. Qty.
AB37480.008.0001#20.089"0.172"-0.01"---€1,859.4990000
BU37480.008.0001#20.095"1/5"Rockwell C40-C500.016"--#2€2.02100
CB37321.025.0001#20.256"1/2"-0.035"---€13,588.7537000
DB37321.031.0001#38/25"0.59"-1/25"---€5,793.9817200
EB37480.011.0001#40.115"0.245"-0.012"---€849.1790000
FB37321.037.0001#40.384"0.7"-0.042"---€10,357.1113150
GB37480.050.0001#40.512"0.867"-0.037"---€1,043.036750
H6DZC6#40.123"0.27"Rockwell C40-C500.018"--0.006"#4€4.78100
IU37480.011.0001#40.123"0.27"Rockwell C40-C500.018"--#4€1.55100
JB37480.087.0001#40.894"1.364"Rockwell C38-C460.052"-0.052" to 0.06"-€1,466.042500
KB37480.056.0001#60.576"0.957"Rockwell C38-C460.037"-0.037" to 0.045"-€1,062.975550
H6DZC7#60.15"0.295"Rockwell C40-C500.022"--0.006"#6€4.99100
LB37480.025.0001#60.256"0.46"Rockwell C40-C500.023"-0.023" to 0.028"-€899.7037000
MU37480.013.0001#60.15"0.295"Rockwell C40-C500.022"--#6€1.79100
NB37321.050.0001#60.512"22/25"-0.055"---€9,752.726750
OB37480.013.0001#60.141"0.275"-0.016"---€1,047.6590000
PB37480.062.0001#816/25"1.045"-0.042"---€910.175000
QB37480.016.0001#80.168"0.325"-0.018"---€537.2150000
RB37321.062.0001#816/25"1.1"-0.059"---€9,916.015000
SB37480.031.0001#88/25"0.594"-0.028"---€603.0617200
TU37480.016.0001#80.176"0.34"Rockwell C40-C500.023"--#8€1.82100
H6DZC8#80.176"0.34"Rockwell C40-C500.023"--0.006"#8€7.78100
UB37480.037.0001#100.384"0.67"-0.032"---€918.2413150
VB37480.100.0001#101.019"1.59"Rockwell C38-C460.059"-0.059" to 0.067"-€1,504.181610
WB37480.075.0001#100.769"1.22"-0.047"---€1,119.942970
-

Zinc Plated Steel Countersunk External Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessFor Screw SizeClassTypeMaterialPricePkg. Qty.
AB37500.016.0001#40.167"0.322"0.017"--Countersunk External Tooth LockSteel€2,357.2350000
BB37500.037.0001#40.383"0.765"0.028"--Countersunk External Tooth LockSteel€3,380.9313150
CU37500.013.0001#60.14"0.289"0.017"#6Not ApplicableCountersunk External Tooth LockSteel€9.56100
DB37500.019.0001#60.195"0.354"0.02"--Countersunk External Tooth LockSteel€2,847.1650000
EU37500.016.0001#80.167"0.322"-#8Not ApplicableCountersunk External Tooth LockSteel€8.61100
FB37500.021.0001#80.22"0.421"0.02"--Countersunk External Tooth LockSteel€3,817.6331200
GU37500.019.0001#100.195"0.354"0.02"#10Not ApplicableCountersunk External Tooth LockSteel€10.46100
HB37500.025.0001#100.255"0.454"0.02"--Countersunk External Tooth LockSteel€1,921.1229400
IU37500.021.0001#120.22"0.421"0.02"#12Not ApplicableCountersunk External Tooth LockSteel€21.18100
JU37500.025.00011/4"0.255"0.454"0.02"1/4"Not ApplicableCountersunk External Tooth LockSteel€11.33100
KU37500.037.00013/8"0.383"0.765"0.028"3/8"Not ApplicableCountersunk External Tooth LockSteel€22.3350
LU37500.031.00015/16"0.318"0.599"0.023"5/16"Not ApplicableCountersunk External Tooth LockSteel€20.03100
-

Yellow Zinc Plated Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessFor Screw SizeClassColorPricePkg. Qty.
AB37060.137.0001#21.379"2.219"-0.344"---€1,213.82100
BB37060.150.0001#31.504"2.419"-3/8"---€887.7275
CB37060.175.0001#51.758"2.679"-0.389"---€663.5165
DU37060.150.00011 1/2"1.504"2.419"Rockwell C40-C503/8"1 1/2"Not Applicable-€65.245
EU37060.112.00011 1/8"1.129"1.847"Rockwell C460.281"1 1/8"Not ApplicableYellow€8.335
FU37060.175.00011 3/4"1.758"2.679"Rockwell C40-C500.389"1 3/4"Not ApplicableYellow€36.835
GU37060.137.00011 3/8"1.379"2.219"Rockwell C40-C500.344"1 3/8"Not Applicable-€71.115
HU37060.100.00011"1.003"1.656"Rockwell C38-C461/4"1"Not ApplicableYellow€5.605
IU37060.050.00011/2"0.502"0.869"Rockwell C38-C461/8"1/2"Not ApplicableYellow€5.1125
JU37060.025.00011/4"0.26"0.487"Rockwell C38-C461/16"1/4"Not ApplicableYellow€3.65100
KU37060.200.00012"2.008"2.936"Rockwell C460.422"2"Not ApplicableYellow€31.255
LU37060.075.00013/4"0.753"1.265"Rockwell C38-C463/16"3/4"Not ApplicableYellow€5.1810
MU37060.037.00013/8"0.377"17/25"Rockwell C38-C463/32"3/8"Not ApplicableYellow€3.7950
N4VPG15/8"0.628"1.073"Rockwell C38-C460.156"5/8"Not ApplicableYellow€370.682000
OU37060.062.00015/8"0.628"1.073"Rockwell C38-C460.156"-Not ApplicableYellow€3.7010
PU37060.031.00015/16"0.322"0.583"Rockwell C38-C460.0781"5/16"Not ApplicableYellow€5.28100
QU37060.087.00017/8"0.878"1.459"Rockwell C38-C460.219"7/8"Not ApplicableYellow€4.075
RU37060.043.00017/16"11/25"0.77"Rockwell C38-C460.109"7/16"Not ApplicableYellow€3.4725
SU37060.056.00019/16"0.564"0.965"Rockwell C38-C460.141"9/16"Not ApplicableYellow€6.7425
-

Delta Protect Steel Wedge Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceFor Screw SizeColorPricePkg. Qty.
A1512#50.13"7/25"Rockwell C460.071"-0.01" to +0.01"#5Silver€43.7920
B1206#50.13"7/25"Rockwell C460.071"-0.01" to +0.01"#5Silver€340.55200
C1514#60.15"0.35"Rockwell C460.071"-0.01" to +0.01"#6Silver€43.2320
D1207#60.15"0.3"Rockwell C460.071"-0.01" to +0.01"#6Silver€360.76200
E1208#60.15"0.35"Rockwell C460.071"-0.01" to +0.01"#6Silver€364.28200
F1513#60.15"0.3"Rockwell C460.071"-0.01" to +0.01"#6Silver€43.2320
G1212#80.17"0.35"Rockwell C460.071"-0.01" to +0.01"#8Silver€365.91200
H1209#80.17"0.3"Rockwell C460.071"-0.01" to +0.01"#8Silver€281.20200
I1516#80.17"0.35"Rockwell C460.071"-0.01" to +0.01"#8Silver€43.7920
J1515#80.17"0.3"Rockwell C460.071"-0.01" to +0.01"#8Silver€43.7920
K1517#100.21"0.35"Rockwell C460.071"-0.01" to +0.01"#10Silver€43.1720
L1518#100.21"0.43"Rockwell C460.071"-0.01" to +0.01"#10Silver€43.7920
M1213#100.21"0.35"Rockwell C460.071"-0.01" to +0.01"#10Silver€281.20200
N1218#100.21"0.43"Rockwell C460.071"-0.01" to +0.01"#10Silver€366.00200
OGDP-1131 1/2"1.523"2.196"Rockwell C40-C550.256"--Silver€450.5425
P28061 1/2"1.59"2.3"Rockwell C460.26"-0.02" to +0.02"1 1/2"Silver€779.5725
Q15581 1/2"1.59"2.3"Rockwell C460.26"-0.02" to +0.02"1 1/2"Silver€38.821
R15541 1/4"1.35"1.91"Rockwell C460.23"-0.02" to +0.02"1 1/4"Silver€30.451
S15551 1/4"1.35"2.3"Rockwell C460.26"-0.02" to +0.02"1 1/4"Silver€38.821
T27421 1/4"1.35"2.3"-0.26"-0.02" to +0.02"1 1/4"Silver€778.5925
U27171 1/4"1.35"1.91"Rockwell C460.26"-0.02" to +0.02"1 1/4"Silver€614.9925
VGDP-1121 1/4"1.275"1 7/8"Rockwell C40-C550.265"--Silver€294.5325
W27241 1/8"1 6/25"2.3"Rockwell C460.26"-0.02" to +0.02"1 1/8"Silver€779.5725
X15531 1/8"1 6/25"2.3"Rockwell C460.26"-0.02" to +0.02"1 1/8"Silver€38.821
YGDP-1111 1/8"1.14"1.715"Rockwell C40-C550.256"--Silver€252.0225
-

Plain Grade 18-8 Stainless Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceResistance PropertiesFor Screw SizePricePkg. Qty.
A1NY83#23/32"0.172"Rockwell C350.02"--#2€19.771000
BU51450.008.0001#20.088"0.172"Rockwell C350.02"0.02"-#2€1.6250
C1NY84#23/32"0.172"Rockwell C350.02"--#2€4.64100
DU51450.009.0001#30.101"0.195"Rockwell C350.025"Not Rated--€2.3850
E1NY86#30.107"0.195"Rockwell C350.025"--#3€6.07100
FU51450.011.0001#40.114"0.209"Rockwell C320.025"--#4€2.1450
GB51450.011.0001#43/25"0.209"Rockwell C350.025"+0.025"-#4€25.041000
H1NY89#50.133"0.236"Rockwell C350.031"--#5€4.85100
IU51450.012.0001#50.127"0.236"Rockwell C350.031"Not RatedChemical Resistant, Corrosion Resistant, High Temperature Resistant, Nonmagnetic, Solvent Resistant#5€2.7150
JU51450.013.0001#60.141"1/4"Rockwell C350.031"0.031"--€2.8350
KB51450.013.0001#60.148"1/4"Rockwell C350.031"+0.031"-#6€21.121000
LU51450.016.0001#80.167"0.293"Rockwell C351/25"-Corrosion Resistant#8€2.3450
MB51450.016.0001#80.174"0.293"Rockwell C351/25"+0.04"Corrosion Resistant#8€45.371000
NB51450.019.0001#101/5"0.334"Rockwell C350.047"+0.047"--€63.071000
OU51450.019.0001#100.193"0.334"Rockwell C350.047"-Corrosion Resistant#10€2.7850
P1NY96#120.227"0.377"Rockwell C350.056"--#12€9.64100
QU51450.021.0001#120.22"0.377"Rockwell C350.056"0.056"-#12€4.3250
RU51450.150.00011 1/2"1.504"2.419"Rockwell C353/8"--1 1/2"€59.035
SU51450.125.00011 1/4"1.254"2.036"Rockwell C350.312"---€50.535
TU51450.112.00011 1/8"1.129"1.847"Rockwell C350.281"---€15.445
U1PA161"1.024"1.656"Rockwell C351/4"--1"€58.2710
VU51450.100.00011"1.003"1.656"Rockwell C351/4"-Corrosion Resistant1"€16.595
WU51450.050.00011/2"0.502"0.869"Rockwell C351/8"-Corrosion Resistant1/2"€5.7510
XU51390.025.00011/4"0.252"0.363"Rockwell C350.0781"0.078"-1/4"€10.6550
Y1NY121/4"0.26"0.363"Rockwell C350.0781"--1/4"€14.13100
-

Plain Grade 316 Stainless Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness ToleranceFor Screw SizeClassHardnessPricePkg. Qty.
AU55450.008.0001#20.088"0.172"0.02"-#2Not Applicable-€1.5750
BU55450.011.0001#40.114"0.209"0.025"0.025"#4Not Applicable-€5.0450
CU55450.013.0001#60.141"1/4"0.031"0.031"#6Not Applicable-€5.9850
DU55450.016.0001#80.174"0.293"1/25"0.04"#8Not Applicable-€5.8350
EU55450.019.0001#100.193"0.334"0.047"0.047"#10Not Applicable-€6.7350
FU55450.021.0001#120.22"0.377"0.056"-#12Not Applicable-€17.9250
GU55450.150.00011 1/2"1.504"2.419"3/8"-1 1/2"Not ApplicableRockwell C35€106.395
HU55450.125.00011 1/4"1.254"2.036"0.312"-1 1/4"Not Applicable-€75.435
IU55450.112.00011 1/8"1.129"1.847"0.281"-1 1/8"Not Applicable-€35.655
JU55450.100.00011"1.003"1.656"1/4"-1"Not ApplicableRockwell C35€39.815
K1NY791"1.024"1.656"1/4"-1"Not ApplicableRockwell C35€36.425
LU55450.050.00011/2"0.502"0.869"1/8"-1/2"Not Applicable-€7.2610
MU55450.025.00011/4"0.252"0.487"1/16"-1/4"Not Applicable-€5.0450
NU55450.075.00013/4"0.753"1.265"3/16"-3/4"Not Applicable-€6.945
OWSHR,LOCK 3/8 SS63/8"--------1
RFQ
PU55450.037.00013/8"0.377"17/25"3/32"-3/8"Not Applicable-€15.4550
QU55450.062.00015/8"0.628"1.073"0.156"-5/8"Not Applicable-€8.7410
RU55450.031.00015/16"0.314"0.583"0.0781"-5/16"Not Applicable-€11.8250
SU55450.087.00017/8"0.878"1.459"0.219"-7/8"Not ApplicableRockwell C35€16.735
T1NY787/8"0.894"1.459"0.219"-7/8"Not ApplicableRockwell C35€45.7510
UU55450.043.00017/16"11/25"0.77"0.109"-7/16"Not Applicable-€10.7925
VU55450.056.00019/16"0.564"0.965"0.141"-9/16"--€28.3110
APPROVED VENDOR -

Plain Grade 316 Stainless Steel Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceFor Screw SizeClassPricePkg. Qty.
AU55462.011.0001#40.116"0.265"Rockwell B850.015"0.012" to 0.018"#4Not Applicable€93.3950
BU55462.013.0001#60.142"0.288"Rockwell B850.017"-0.003 to +0.003#6Not Applicable€18.5150
CU55462.016.0001#80.168"0.336"Rockwell B850.02"0.018" to 0.023"#8Not Applicable€8.6150
DU55462.019.0001#100.195"0.365"Rockwell B880.018"-0.003" to +0.003"#10Not Applicable€22.9850
EU55462.025.00011/4"0.256"0.46"Rockwell B880.023"-0.0025" to +0.0025"1/4"Not Applicable€33.5950
FSIWIXX037-025BX3/8"0.384"0.692"Rockwell B850.035"0.032" to 0.04"3/8"Not Applicable€95.9325
GU55462.037.00013/8"0.384"0.67"-0.032"-3/8"Not Applicable€8.8550
HU55462.031.00015/16"8/25"0.594"-0.028"-5/16"Not Applicable€42.9150
-

Plain Steel Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessFor Screw SizeClassColorPricePkg. Qty.
AB37320.050.0001#40.512"22/25"-0.055"---€4,173.846750
BB37320.062.0001#616/25"1.1"-0.059"---€13,808.895000
CB37320.025.0001#60.256"1/2"-0.035"---€8,976.0037000
DB37320.031.0001#88/25"0.59"-1/25"---€8,791.7217200
BB37320.075.0001#100.768"1 6/25"-0.071"---€14,281.502970
EB37320.037.0001#100.384"0.7"-0.042"---€8,981.1313150
FU37320.050.00011/2"0.512"22/25"Rockwell C40-C500.055"1/2"Not Applicable-€25.1925
GU37320.025.00011/4"0.256"1/2"Rockwell C40-C500.035"1/4"Not Applicable-€32.83100
HU37320.075.00013/4"0.768"1 6/25"Rockwell C40-C500.071"3/4"Not Applicable-€68.6810
IU37320.037.00013/8"0.384"1.7"Rockwell C40-C500.042"3/8"Not Applicable-€39.2450
JU37320.062.00015/8"16/25"1.1"Rockwell C40-C500.059"5/8"Not Applicable-€39.4710
KU37320.031.00015/16"8/25"0.59"Rockwell C40-C501/25"5/16"Not Applicable-€73.03100
BL37320.030.0001M33.2 mm6 mm-0.4 mm--Silver€5,180.2790000
LL37320.040.0001M44.3 mm8 mm-0.5 mm--Silver€2,381.4850000
ML37320.050.0001M55.3 mm10 mm-0.6 mm--Silver€3,403.4550000
NL37320.060.0001M66.4 mm11 mm-0.7 mm--Silver€2,290.6340000
OL37320.080.0001M88.4 mm15 mm-0.8 mm--Silver€1,676.3618100
PL37320.100.0001M1010.5 mm18 mm-0.9 mm--Silver€2,223.7911100
QM37320.120.0001M1213 mm20.5 mmRockwell C35-C421 mmM12Not Applicable-€14.6950
12...1617

Lock Washers

Lock washers are used for creating tight assemblies with ordinary fasteners. Raptor Supplies offers a wide range of lock washers from brands like Unistrut, Vulcan-Hart, Midwest Acorn Nut, Fabory, Super-Strut, Metric Blue, Woodhead, Foreverbolt, Cooper B-Line, Disc-Lock and Armor Coat. These lock washers grab adjoining materials for preventing loosening due to vibration.

Frequently Asked Questions

How to install a lock washer?

  • Place the lock washer between the threaded fastener (like a nut) and the screw / bolt head.
  • Make sure that the lock washer press against the fastener & other adjacent surfaces and forms a tight connection. Press the fastener down to lock the grooves of a tooth lock washer with the grooves of the nut.
  • Use a wrench or ratchet to tighten the nut or threaded fastener.
  • Make sure that the teeth of the tooth lock washer are covered completely by the nut / fastener head, or that the split lock washer is slightly out of alignment to indicate tension on the threaded fastener. Users may loosen the nut / threaded fastener to adjust the washer if it is not operating correctly.

How to remove a lock washer?

  • After the operation is completed, the washer can be removed by simply removing the nut / threaded fastener that is holding the washer in place using a vise-grip or pipe wrench.
  • Use a flat screwdriver to pry the lock washer off. When removing a split washer, the screwdriver head should be placed inside the split or beneath the washer and pushed. When removing a washer having teeth, the screwdriver head should be placed under a tooth and pushed up, repeating the procedure with more teeth if required. For other lock washer types, the screwdriver head can be placed below the washer and pushed up. The washer may break during removal, depending on the amount of pressure being applied.
  • If the lock washer does not budge, use penetrating oil and repeat the previous step.
  • Some lock washers can be used multiple times easily. Other washers (split lock) can be used only 1 or 2 times. Users should not reuse a split lock washer or other damaged washers. Do not use old washers in high-stress joint applications.

What is the difference between lock washers and flat washers?

Flat washers are suitable for increasing the surface area and distributing the applied force when tightening the fastener. They can be used on the fastener's bolt & nut sides, or used as spacers where using a bolt may not be suitable.
Lock washers create tension during tightening to prevent the loosening of nuts. They are generally used on the fastener's nut side for applications involving vibrations.

Which type of lock washers has the highest vibration resistance?

Split Lock, Tooth Lock, Diamond-Coated Lock, Spring Lock and Wedge Lock type lock washers have vibration resistance in ascending or increasing order.