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

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessColorFor Screw SizeTypeMaterialPricePkg. Qty.
AM37480.020.0001M22.2 mm4.5 mm0.3 mmSilverM2Serrated Internal Tooth LockSpring Steel€8.50100
AM37480.025.0001M2.52.7 mm5.5 mm0.4 mmSilverM2.5Serrated Internal Tooth LockSpring Steel€8.82100
AM37480.035.0001M3.53.7 mm7 mm0.5 mmSilverM3.5Serrated Internal Tooth LockSpring Steel€7.48100
AM37480.070.0001M77.4 mm12.5 mm0.8 mmGray-Serrated Internal Tooth LockSpring Steel€17.72100
AM37480.080.0002M88.4 mm15 mm0.8 mmSilverM8Serrated Internal Tooth LockSpring Steel€21.15100
AM37480.140.0001M1415 mm24 mm1.1 mmSilverM14Serrated Internal Tooth LockSpring Steel€81.58100
AM37480.160.0001M1617 mm26 mm1.2 mmSilverM16Serrated Internal Tooth LockSpring Steel€61.69100
AM37480.180.0001M1819 mm30 mm1.4 mmSilverM18Serrated Internal Tooth LockSpring Steel€136.2150
AM37480.200.0001M2021 mm33 mm1.4 mmSilverM20Serrated Internal Tooth LockSpring Steel€62.3850
AM37480.240.0001M2425 mm38 mm1.5 mmSilverM24Serrated Internal Tooth LockSpring Steel€144.0450
StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness ToleranceFor Screw SizeClassHardnessPricePkg. Qty.
ALWIS-100-100P#101/5"0.334"0.047"0.047" to 0.062"-Not ApplicableRockwell C38-C46€2.05100
ALWIS0250-100P1/4"0.26"0.487"1/16"0.062" to 0.109"1/4"Not ApplicableRockwell C38-C46€2.25100
ALWIS0370-100P3/8"0.385"17/25"3/32"0.094" to 0.141"3/8"Not ApplicableRockwell C38-C46€5.44100
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Plain Grade A4 Stainless Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness ToleranceFor Screw SizeClassHardnessPricePkg. Qty.
AM55450.020.0001M22.1 mm4.4 mm0.5 mm-M2Not Applicable-€3.7550
BM55450.025.0001M2.52.6 mm5.1 mm0.6 mm-M2.5Not Applicable-€2.8350
CM55450.030.0001M33.1 mm6.2 mm0.8 mm-M3Not Applicable-€5.8450
DLW7XX00350-100P1M3.53.6 mm6.7 mm0.8 mm-0.1 mm to +0.1 mmM3.5Not Applicable-€9.05100
EM55450.040.0001M44.1 mm7.6 mm0.9 mm-M4Not Applicable-€3.9950
FM55390.050.0001M55.1 mm8.8 mm1.6 mm-M5Not ApplicableRockwell C38-C46€5.2850
GM55450.050.0001M55.1 mm9.2 mm1.2 mm-M5Not Applicable-€9.0850
HM55450.060.0001M66.1 mm11.8 mm1.6 mm-M6Not Applicable-€6.9950
IM55390.060.0001M66.1 mm9.9 mm1.6 mm-M6Not ApplicableRockwell C38-C46€6.8050
JM55450.080.0001M88.1 mm14.8 mm2 mm-0.1 mm to +0.1 mmM8Not Applicable-€6.2050
KM55390.080.0001M88.1 mm12.7 mm2 mm-M8Not ApplicableRockwell C38-C46€5.1650
LM55450.100.0001M1010.2 mm18.1 mm2.2 mm-M10Not Applicable-€10.6950
FM55390.100.0001M1010.2 mm16 mm2.5 mm-M10Not ApplicableRockwell C38-C46€12.4750
MM55450.120.0001M1212.2 mm21.1 mm2.5 mm-M12Not Applicable-€7.3425
NM55390.120.0001M1212.2 mm18 mm2.5 mm-M12--€14.1350
OM55450.140.0001M1414.2 mm24.1 mm3 mm-0.15 mm to +0.15 mm-Not Applicable-€15.3525
PM55450.160.0001M1616.2 mm27.4 mm3.5 mm-M16Not Applicable-€6.9310
QM55450.180.0001M1818.2 mm29.4 mm3.5 mm-M18Not Applicable-€7.8610
RM55450.200.0001M2020.2 mm33.6 mm4 mm-M20Not Applicable-€6.435
SM55450.220.0001M2222.5 mm35.9 mm4 mm-M22Not ApplicableRockwell C38-C46€11.105
OM55450.240.0001M2424.5 mm40 mm5 mm-0.2 mm to +0.2 mmM24Not Applicable-€14.745
APPROVED VENDOR -

Plain Grade 410 Stainless Steel External Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceFor Screw SizeClassPricePkg. Qty.
A1NY46#40.123"0.26"Rockwell C400.018"0.012" to 0.018"#4Not Applicable€7.24100
BU53460.011.0001#40.115"0.245"Rockwell C40-C500.012"0.012" to 0.018"#4Not Applicable€2.3950
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 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
APPROVED VENDOR -

Plain Grade 410 Stainless Steel Countersunk External Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessFor Screw SizeClassColorThickness TolerancePricePkg. Qty.
AU51501.008.0001#2---#2Not Applicable--€75.0150
BU51501.011.0001#40.113"0.213"0.015"#4Not Applicable--€44.6150
CU51501.013.0001#60.14"0.289"0.017"#6Not ApplicableSilver-0.002" to +0.002"€15.3750
DU51501.016.0001#80.167"0.322"0.017"#8Not Applicable--€16.0050
EU51501.019.0001#100.195"0.354"0.02"#10Not Applicable--€22.5350
FU51501.025.00011/4"0.255"0.454"0.02"1/4"Not Applicable--€38.0350
GU51501.037.00013/8"0.383"0.765"0.028"3/8"Not Applicable--€194.1350
HU51501.031.00015/16"0.318"0.599"0.023"5/16"Not Applicable--€177.7750
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Plain Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceFor Screw SizeClassPricePkg. Qty.
AU37000.008.0001#20.088"0.172"Rockwell C40-C500.02"-#2Not Applicable€4.35100
BB37170.150.0001#21.504"2.627"-0.496"---€1,529.6470
CB37200.013.0001#20.141"0.216"-0.031"---€5,575.1090000
DB37180.225.0001#22.262"3.398"-0.496"---€731.9725
EB37200.016.0001#30.167"0.267"-0.047"---€2,211.0650000
FU37000.009.0001#30.101"0.195"Rockwell C40-C500.025"-#3Not Applicable€4.64100
GU37000.011.0001#40.114"0.209"Rockwell C40-C500.025"-#4Not Applicable€1.25100
HB37170.056.0001#40.564"1.035"-0.182"---€1,125.271075
IB37170.100.0001#41.003"1.794"-0.33"---€1,706.73220
JB37180.137.0001#41.379"2.301"-0.422"---€1,426.0480
KB37180.250.0001#42.512"3.648"-0.496"---€663.4125
LB37000.137.0001#41.379"2.219"-0.344"---€388.37100
MU37200.011.0001#40.114"0.173"Rockwell C40-C500.022"-#4Not Applicable€3.66100
NB37170.025.0001#40.252"0.533"-0.084"---€1,780.348400
OU37180.011.0001#40.114"0.223"-0.031"--Not Applicable€5.45100
PU37170.011.0001#40.114"0.253"Rockwell C40-C500.034"-#4Not Applicable€9.94100
QB37000.250.0001#52.512"3.471"-11/25"---€641.0230
RB37200.019.0001#50.193"0.294"-0.047"---€1,590.8250000
SU37000.012.0001#50.127"0.236"Rockwell C40-C500.031"-#5Not Applicable€3.52100
TU37200.012.0001#50.127"0.202"Rockwell C40-C500.031"-#5Not Applicable€3.67100
UU37180.012.0001#50.127"0.252"Rockwell C40-C501/25"-#5Not Applicable€7.22100
VB37180.150.0001#61.504"2.491"-0.458"---€1,158.1765
WU37000.013.0001#60.141"1/4"Rockwell C40-C500.031"-#6Not Applicable€1.81100
XB37180.043.0001#611/25"0.784"-0.133"---€686.521900
YB37180.011.0001#60.114"0.223"-0.031"---€4,272.5790000
APPROVED VENDOR -

Grade 2 Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceFor Screw SizeClassPricePkg. Qty.
AU37060.125.00011 1/4"1.254"2.036"Rockwell C380.312"0.312"1 1/4"Not Applicable€10.565
BU37025.031.00015/16"0.322"0.583"Rockwell C38-C460.0781"0.078"5/16"Not Applicable€8.52100
FABORY -

Plain Stainless Steel Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceColorPricePkg. Qty.
AB51462.011.0001#20.115"0.245"Rockwell C45-C500.012"0.012" to 0.018"-€1,761.9450000
BB53462.008.0001#20.089"0.172"-0.01"--€3,220.3050000
CB53462.025.0001#20.256"0.46"-0.023"--€1,357.1725000
DB53462.009.0001#30.102"0.215"-0.01"--€3,649.1350000
EB53462.031.0001#38/25"0.594"-0.028"--€1,614.6017200
FB53462.050.0001#30.512"0.867"Rockwell C400.037"-0.004" to +0.004"-€1,686.285000
GB51462.013.0001#40.141"0.275"-0.016"--€2,908.2250000
HB53462.011.0001#40.115"0.245"Rockwell C40-C500.012"0.012" to 0.018"-€2,875.0050000
IB51462.075.0001#40.769"1.22"Rockwell C45-C500.047"0.047" to 0.055"-€2,738.462500
JB53462.037.0001#40.384"0.67"-0.032"--€1,673.5813150
KB53462.062.0001#416/25"1.045"Rockwell C400.042"-0.004" to +0.004"-€3,152.485000
LB53462.075.0001#50.769"1.22"Rockwell C400.047"-0.004" to +0.004"-€2,263.252500
MB53462.013.0001#60.141"0.275"Rockwell C40-C500.016"0.016" to 0.022"-€2,181.1750000
NB51462.016.0001#60.168"0.325"Rockwell C45-C500.018"0.018" to 0.023"-€3,077.1250000
OB51462.037.0001#60.384"0.67"Rockwell C45-C500.032"0.032" to 0.04"-€2,085.8813150
PB53462.016.0001#80.168"0.325"Rockwell C40-C500.018"0.018" to 0.023"-€2,931.4350000
QB55462.016.0001#80.168"0.325"-0.018"--€8,635.4250000
RB51462.019.0001#80.195"0.365"Rockwell C45-C500.018"0.018" to 0.024"-€2,580.7450000
NB51462.025.0001#100.256"0.46"Rockwell C20-C450.023"0.023" to 0.028"-€1,498.5425000
SB51462.050.0001#100.512"0.867"Rockwell C45-C500.037"0.037" to 0.045"-€2,420.835000
TB53462.019.0001#100.195"0.365"Rockwell C40-C500.018"0.018" to 0.024"-€3,598.6450000
UB53462.021.0001#120.221"0.394"Rockwell C40-C500.02"0.02" to 0.027"-€1,236.3925000
NB55462.025.00011/4"0.256"0.46"Rockwell B880.023"-0.0025" to +0.0025"-€14,638.8025000
VB55462.037.00013/8"0.384"0.67"-0.032"--€1,669.9213150
NB55462.031.00015/16"8/25"0.594"-0.028"--€12,911.9817200
FABORY -

Galvanized Spring Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessColorFor Screw SizeFinishTypePricePkg. Qty.
AM37025.060.0001M66.1 mm11.8 mm1.6 mmSilverM6Hot Dipped GalvanizedSplit Lock€13.34100
BL37025.080.0001M88.1 mm14.8 mm2 mmGray-GalvanizedSplit Lock€767.736300
AM37025.080.0001M88.1 mm14.8 mm2 mmSilverM8Hot Dipped GalvanizedSplit Lock€18.90100
AM37025.100.0001M1010.2 mm18.1 mm2.2 mmSilverM10Hot Dipped GalvanizedSplit Lock€94.09100
AM37025.120.0001M1212.2 mm21.1 mm2.5 mmSilverM12Hot Dipped GalvanizedSplit Lock€35.63100
AM37025.160.0001M1616.2 mm27.4 mm3.5 mmSilverM16Hot Dipped GalvanizedSplit Lock€42.5050
BL37025.160.0001M1616.2 mm27.4 mm3.5 mmGray-GalvanizedSplit Lock€644.731150
AM37025.180.0001M1818.2 mm29.4 mm3.5 mmSilverM18Hot Dipped GalvanizedSplit Lock€63.7550
AM37025.200.0001M2020.2 mm33.6 mm4 mmSilverM20Hot Dipped GalvanizedSplit Lock€70.7050
AM37025.220.0001M2222.5 mm35.9 mm4 mmSilverM22Hot Dipped GalvanizedSplit Lock€71.3525
AM37025.240.0001M2424.5 mm40 mm5 mmSilverM24Hot Dipped GalvanizedSplit Lock€46.6425
AM37025.270.0001M2727.5 mm43 mm5 mmSilverM27Hot Dipped GalvanizedSplit Lock€38.2510
CL37025.300.0001M3030.5 mm48.2 mm6 mmGray-GalvanizedSplit Lock€1,169.75220
AM37025.300.0001M3030.5 mm48.2 mm6 mmSilverM30Hot Dipped GalvanizedSplit Lock€53.555
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Zinc Plated Steel Wedge Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessColorThickness ToleranceFor Screw SizePricePkg. Qty.
A3303-6.3 mm10.8 mmRockwell C461.77 mmSilver-0.28 mm to +0.28 mm6 mm€315.95200
B099-01#80.175"0.34"Rockwell C40-C552/25"Silver---200
RFQ
A23971/2"13/25"0.768"--Silver-0.28 mm to +0.28 mm1/2"€566.24200
C098-M13 mm3.81 mm8.6 mmRockwell C40-C552.03 mmSilver-3 mm-200
RFQ
A24033/4"-1.209"Rockwell C460.2188"Silver-0.28 mm to +0.28 mm3/4"€693.06100
A23933/8"0.394"--0.102"Silver-0.28 mm to +0.28 mm3/8"€382.72200
D100-013/16"0.203"0.401"Rockwell C40-C552/25"Silver-3/16"€156.18200
E099-M14 mm4.45 mm8.6 mmRockwell C40-C552.03 mmSilver---200
RFQ
F100-M15 mm5.15 mm10.2 mmRockwell C40-C552.03 mmSilver--€141.41200
A26186 mm6.3 mm13.5 mm-1.77 mmSilver-0.28 mm to +0.28 mm6 mm€337.50200
A23738 mm8.4 mm13.5 mmRockwell C462.29 mmSilver-0.28 mm to +0.28 mm8 mm€337.50200
A23748 mm8.4 mm16.6 mmRockwell C462.29 mmGray-0.28 mm to +0.28 mm-€380.47200
A237510 mm10.5 mm16.6 mmRockwell C462.95 mmSilver-0.28 mm to +0.28 mm10 mm€382.72200
A262110 mm-21 mmRockwell C462.95 mmSilver-10 mm€643.23200
A237712 mm12.5 mm25.4 mmRockwell C463.5 mmSilver-0.28 mm to +0.28 mm12 mm€462.02100
A237612 mm12.5 mm19.5 mmRockwell C463.5 mmSilver-0.28 mm to +0.28 mm12 mm€638.71200
A239914 mm14.6 mm23 mmRockwell C464.03 mmSilver-0.28 mm to +0.28 mm14 mm€421.27100
A237816 mm16.6 mm25.4 mmRockwell C464.74 mmSilver-0.28 mm to +0.28 mm16 mm€462.02100
A237916 mm16.6 mm30.7 mmRockwell C464.74 mmSilver-0.28 mm to +0.28 mm16 mm€693.06100
A238020 mm20.7 mm30.7 mmRockwell C466.01 mmSilver-0.32 mm to +0.32 mm20 mm€693.06100
StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessThickness ToleranceFor Screw SizeHardnessColorPricePkg. Qty.
AUST187437M33.5 mm5.5 mm1 mm-0.1 mm to +0.1 mmM3Rockwell C44-C51Blue€9.63100
AUST187438M44.5 mm6.5 mm1.2 mm-0.1 mm to +0.1 mm-Rockwell C44-C51-€5.91100
AUST187439M55.5 mm8.5 mm1.6 mm-0.1 mm to +0.1 mmM5Rockwell C44-C51Blue€6.33100
AUST187440M66.5 mm9.5 mm1.6 mm-0.1 mm to +0.1 mmM6Rockwell C44-C51Blue€10.98100
AUST182830M66.5 mm11.3 mm1.7 mm-0.1 mm to +0.1 mmM6Rockwell C44-C51Blue€11.59100
AUST187441M89 mm12.5 mm2 mm-0.1 mm to +0.1 mmM8Rockwell C44-C51Blue€11.74100
AUST182831M88.5 mm14.5 mm2 mm-0.1 mm to +0.1 mmM8Rockwell C44-C51Blue€11.54100
AUST187442M1010.5 mm15.5 mm2.5 mm-0.15 mm to +0.15 mmM10Rockwell C44-C51Blue€24.58100
AUST182832M1010.5 mm17.5 mm2.3 mm-0.15 mm to +0.15 mmM10Rockwell C44-C51Blue€22.88100
AUST187443M1212.5 mm17.5 mm2.5 mm-0.15 mm to +0.15 mmM12Rockwell C44-C51Blue€40.33100
AUST182833M1213 mm20 mm2.5 mm-0.15 mm to +0.15 mmM12Rockwell C44-C51Blue€37.89100
AUST182834M1616.5 mm26.5 mm3.6 mm-0.2 mm to +0.2 mmM16Rockwell C44-C51Blue€47.5550
AUST187445M1616.5 mm23 mm3.5 mm-0.2 mm to +0.2 mmM16Rockwell C44-C51Blue€66.67100
AUST182835M2021 mm32.5 mm4.2 mm-0.2 mm to +0.2 mmM20Rockwell C44-C51Blue€75.9650
AUST187447M2021 mm30 mm4.6 mm-0.2 mm to +0.2 mmM20Rockwell C44-C51Blue€61.7850
AUST187449M2425 mm35 mm5 mm-0.2 mm to +0.2 mmM24Rockwell C44-C51Blue€86.2625
AUST182836M2425 mm40 mm4.9 mm-0.2 mm to +0.2 mmM24Rockwell C44-C51Blue€43.9025
APPROVED VENDOR -

Plain Grade A2 Stainless Steel Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessFor Screw SizeClassTypeMaterialPricePkg. Qty.
AM51458.020.0001M22.2 mm4.5 mm0.3 mmM2Not ApplicableInternal Tooth LockStainless Steel€3.4950
BSIW7X0250-100P1M2.52.7 mm5.5 mm0.4 mm to 0.8 mmM2.5Not ApplicableInternal Tooth LockStainless Steel€8.23100
BSIW7X0260-100P1M2.62.8 mm5.5 mm0.4 mm to 0.8 mmM2.6Not ApplicableInternal Tooth LockStainless Steel€8.65100
CM51458.030.0001M33.2 mm6 mm0.4 mmM3Not ApplicableInternal Tooth LockStainless Steel€2.5750
BSIW7X0350-100P1M3.53.7 mm7 mm0.5 mm to 1 mmM3.5Not ApplicableInternal Tooth LockStainless Steel€8.91100
DM51458.040.0001M44.3 mm8 mm0.5 mmM4Not ApplicableInternal Tooth LockStainless Steel€2.9450
EM51458.050.0001M55.3 mm10 mm0.6 mmM5Not ApplicableInternal Tooth LockStainless Steel€2.7850
FM51458.060.0001M66.4 mm11 mm0.7 mmM6Not ApplicableInternal Tooth LockStainless Steel€4.3950
GM51458.080.0001M88.4 mm15 mm0.8 mmM8Not ApplicableInternal Tooth LockStainless Steel€7.3350
HM51458.100.0001M1010.5 mm18 mm0.9 mmM10Not ApplicableInternal Tooth LockStainless Steel€7.4050
IM51458.120.0001M1213 mm20.5 mm1 mmM12Not ApplicableInternal Tooth LockStainless Steel€4.8625
JM51458.140.0001M1415 mm24 mm1 mmM14Not ApplicableInternal Tooth LockStainless Steel€6.8425
KM51458.160.0001M1617 mm26 mm1.2 mmM16Not ApplicableInternal Tooth LockStainless Steel€4.3510
LM51458.200.0001M2021 mm33 mm1.4 mmM20Not ApplicableInternal Tooth LockStainless Steel€5.645
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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
AB50450.037.0001#60.384"0.67"-0.032"---€7,505.1814450
EU50450.013.0001#60.15"8/25"Rockwell B900.022"0.016" to 0.022"#6Not Applicable€8.92100
FU50450.016.0001#80.176"0.381"Rockwell B900.023"0.018" to 0.023"#8Not Applicable€23.11100
AB50450.019.0001#80.195"0.395"-0.018"---€10,817.0150000
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
-

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
NU37060.062.00015/8"0.628"1.073"Rockwell C38-C460.156"-Not ApplicableYellow€3.7010
O4VPG15/8"0.628"1.073"Rockwell C38-C460.156"5/8"Not ApplicableYellow€370.682000
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
APPROVED VENDOR -

Plain Grade 18-8 Stainless Steel Internal Tooth Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceFor Screw SizeClassPricePkg. Qty.
AU51462.011.0001#40.115"0.245"Rockwell C45-C500.012"0.012" to 0.018"#4Not Applicable€8.3650
BU51462.013.0001#60.141"0.275"Rockwell C45-C500.016"0.016" to 0.022"#6Not Applicable€5.1950
CU51462.016.0001#80.168"0.325"Rockwell C45-C500.018"0.018" to 0.023"#8Not Applicable€16.2450
DU51462.019.0001#100.195"0.365"Rockwell C45-C500.018"0.018" to 0.024"#10Not Applicable€8.1250
EU51462.050.00011/2"0.512"0.867"Rockwell C45-C500.037"0.037" to 0.045"1/2"Not Applicable€15.2110
FU51462.025.00011/4"0.256"0.46"Rockwell C20-C450.023"0.023" to 0.028"1/4"Not Applicable€16.9450
GU51462.075.00013/4"0.769"1.22"Rockwell C45-C500.047"0.047" to 0.055"3/4"Not Applicable€20.015
HU51462.037.00013/8"0.384"0.67"-0.032"0.032" to 0.040"3/8"Not Applicable€32.8750
IU51462.062.00015/8"-1.045"Rockwell C20-C450.042"0.042" to 0.05"5/8"Not Applicable€29.8910
JU51462.031.00015/16"8/25"0.594"Rockwell C20-C450.028"-5/16"Not Applicable€28.3750
KU51462.056.00019/16"0.576"0.957"Rockwell C45-C500.037"0.037" to 0.045"9/16"Not Applicable€29.6910
NORD-LOCK -

Plain Grade 254 SMO Stainless Steel Wedge Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.HardnessThicknessThickness ToleranceFor Screw SizeColorPricePkg. Qty.
A1560#50.13"7/25"Rockwell C520.09"-0.01" to +0.01"#5Silver€61.3510
B1561#60.15"0.3"Rockwell C520.09"-0.01" to +0.01"#6Silver€75.6410
C1562#60.15"0.35"Rockwell C520.09"-0.01" to +0.01"#6Silver€64.2610
D1563#80.17"0.3"Rockwell C520.09"-0.01" to +0.01"#8Silver€68.6010
E1564#80.17"0.35"Rockwell C520.09"-0.01" to +0.01"#8Silver€62.0810
F1566#100.21"0.43"Rockwell C520.09"-0.01" to +0.01"#10Silver€81.5110
G1565#100.21"0.35"Rockwell C520.09"-0.01" to +0.01"#10Silver€56.9810
H16041 1/2"1.59"2.3"Rockwell C520.22"-0.02" to +0.02"1 1/2"Silver€163.981
I28341 1/4"1.35"1.91"Rockwell C520.22"-0.02" to +0.02"1 1/4"Silver€119.931
J16001 1/8"1 6/25"1.85"Rockwell C520.22"-0.02" to +0.02"1 1/8"Silver€94.931
K28351 3/8"1.47"2.17"Rockwell C520.22"-0.02" to +0.02"1 3/8"Silver€136.761
L15971"1.1"1.91"Rockwell C520.13"-0.01" to +0.01"1"Silver€87.771
M15961"1.1"1.54"Rockwell 520.13"-0.01" to +0.01"-Silver€93.992
N15801/2"0.53"0.77"Rockwell 522/25"-0.01" to +0.01"1/2"Silver€89.416
O15811/2"0.53"1"Rockwell C520.13"-0.01" to +0.01"1/2"Silver€97.314
P15701/4"7/25"0.53"Rockwell C520.09"-0.01" to +0.01"1/4"Silver€76.5210
Q15691/4"7/25"0.45"Rockwell 520.09"-0.01" to +0.01"1/4"Silver€70.7010
R15893/4"0.79"1.54"Rockwell C520.13"-0.01" to +0.01"3/4"Silver€89.902
S15883/4"0.79"1.21"Rockwell 520.13"-0.01" to +0.01"3/4"Silver€65.313
T15743/8"0.41"0.83"Rockwell C522/25"-0.01" to +0.01"3/8"Silver€85.796
U15733/8"0.41"0.65"Rockwell 522/25"-0.01" to +0.01"3/8"Silver€101.1110
V15845/8"0.67"1"Rockwell 523/25"-0.01" to +0.01"-Silver€83.354
W15855/8"0.67"1.21"Rockwell C520.1"-5/8"Silver€93.173
X15725/16"0.34"0.65"Rockwell C522/25"-0.01" to +0.01"5/16"Silver€96.1010
Y15715/16"0.34"0.53"Rockwell 522/25"-0.01" to +0.01"5/16"Silver€66.7210
DISC-LOCK -

Plain Stainless Steel Wedge Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessFor Screw SizeHardnessColorResistance PropertiesPricePkg. Qty.
ASSG-1101"10.015"10.626"6/25"-Rockwell C25Silver-€706.3050
BSSG-1051/2"0.51"0.937"0.136"-Rockwell C25Silver-€592.36100
CSSG-1011/4"0.262"0.495"0.101"1/4"Rockwell C25SilverShock Resistant, Vibration Resistant€629.35200
DSSG-1083/4"0.82"10.381"0.183"-Rockwell C25Silver-€1,232.06100
ESSG-1033/8"0.409"0.705"0.135"-Rockwell C25Silver-€819.64200
FSSP-1003/16"0.203"0.401"2/25"3/16"Rockwell C25SilverShock Resistant, Vibration Resistant€602.80200
GSSM-1005 mm5.15 mm10.2 mm2.03 mm-Rockwell C25Silver-€604.39200
HSSG-1075/8"0.651"10.247"0.134"-Rockwell C25Silver-€813.41100
ISSG-1025/16"0.326"0.628"0.119"-Rockwell C25Silver-€638.24200
JSSM-1016 mm6.66 mm12.6 mm2.56 mm6 mmRockwell C25SilverShock Resistant, Vibration Resistant€604.39200
KSSG-1097/8"0.883"10.47"6/25"-Rockwell C25Silver-€581.0350
LSSG-1047/16"0.45"22/25"0.135"-Rockwell C25Silver-€1,012.81200
MSSM-1028 mm8.28 mm16 mm3.02 mm8 mmRockwell C25SilverShock Resistant, Vibration Resistant€617.49200
NSSG-1069/16"0.572"10.128"0.127"-Rockwell C25Silver-€770.49100
OSSM-10310 mm10.38 mm17.9 mm3.4 mm10 mmRockwell C25SilverShock Resistant, Vibration Resistant€705.93200
PSSM-10411 mm11.43 mm22.4 mm3.33 mm11 mmRockwell C25SilverShock Resistant, Vibration Resistant€1,025.67200
QSSM-10512 mm12.95 mm23.8 mm3.45 mm12 mmRockwell C25SilverShock Resistant, Vibration Resistant€550.64100
RSSM-10614 mm14.53 mm28.7 mm3.23 mm-Rockwell C25Silver-€680.75100
SSSM-10716 mm16.53 mm31.7 mm3.4 mm-Rockwell C25Silver-€699.45100
TSSM-10820 mm20.82 mm35.1 mm4.65 mm-Rockwell C25Silver-€1,053.07100
USSM-10922 mm22.44 mm37.3 mm6.1 mm22 mmRockwell C25SilverShock Resistant, Vibration Resistant€581.0350
VSSM-11024 mm25.78 mm41.3 mm6.1 mm24 mmRockwell C25SilverShock Resistant, Vibration Resistant€706.3050
StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessFor Screw SizeColorTypeMaterialPricePkg. Qty.
AM51460.025.0001M2.52.7 mm5.5 mm0.4 mmM2.5SilverSerrated External Tooth LockStainless Steel€4.8450
AM51460.140.0001M1415 mm24 mm1 mmM14SilverSerrated External Tooth LockStainless Steel€6.7025
AM51460.220.0001M2223 mm36 mm1.5 mmM22SilverSerrated External Tooth LockStainless Steel€5.045
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
-

Hot Dipped Galvanized Steel Split Lock Washers

StyleModelFits Bolt SizesInside Dia.Outside Dia.ThicknessFor Screw SizeClassHardnessPricePkg. Qty.
AU37025.150.00011 1/2"1.504"2.419"3/8"1 1/2"Not Applicable-€26.775
BU37025.175.00011 3/4"1.758"2.679"0.389"1 3/4"Not Applicable-€26.795
CU37025.137.00011 3/8"1.379"2.219"0.344"1 3/8"Not Applicable-€19.505
DU37025.250.00012 1/2"2.512"3.471"11/25"2 1/2"Not Applicable-€49.535
EU37025.200.00012"2.008"2.936"0.422"2"Not Applicable-€38.885
FU37025.043.00017/16"11/25"0.77"0.109"7/16"-Rockwell C38-C46€3.8025
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.