Flange Nuts

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A flange nut is a hex nut with an extended circular base spreading out from the bottom of the nut, acting as an integrated, non-spinning washer. Flange nuts are used to speed up assembly...Read more

TE-CO -

Black Oxide Grade 2 Steel Standard Flange Nuts

StyleModelThread SizeHex WidthHex HeightFlange Dia.Flange ThicknessHardnessHex TypePrice
A416091"-81 5/8"1 1/4"2"1/4"Rockwell 85-90Flange Nut€22.41
B417091"-141 5/8"1 1/4"2"1/4"Rockwell 85-90Flange Nut€24.02
C416051/2"-137/8"11/16"1 1/8"0.188"Rockwell 85-90Flange Nut€6.52
D417051/2"-207/8"11/16"1 1/8"0.188"Rockwell 85-90Flange Nut€6.28
E416011/4"-201/2"5/16"5/8"0.094"Rockwell 85-90Flange Nut€4.46
F417011/4"-281/2"5/16"5/8"0.094"Rockwell 85-90Flange Nut€5.87
G416073/4"-101 1/4"1"1 5/8"1/4"Rockwell 85-90Flange Nut€12.50
H417073/4"-161 1/4"1"1 5/8"1/4"Rockwell 85-90Flange Nut€14.13
I416033/8"-1611/16"1/2"7/8"1/8"Rockwell 85-90Flange Nut€5.44
J417033/8"-2411/16"1/2"7/8"1/8"Rockwell 85-90Flange Nut€5.53
K416065/8"-111 1/16"13/16"1 3/8"0.188"Rockwell 85-90Flange Nut€8.50
L417065/8"-181 1/16"13/16"1 3/8"0.188"Rockwell 85-90Flange Nut€9.14
M416025/16"-189/16"3/8"3/4"1/8"Rockwell 85-90Flange Nut€4.96
N417025/16"-249/16"3/8"3/4"1/8"Rockwell 85-90Flange Nut€6.05
O416087/8"-91 7/16"1 1/8"1 3/4"1/4"Rockwell 85-90Flange Nut€17.88
P61601M6 x 110 mm8 mm16 mm2 mmRockwell 85-90Flange Nut€6.64
Q61602M8 x 1.2513 mm10 mm19 mm2.5 mmRockwell 85-90Flange Nut€6.73
R61603M10 x 1.517 mm13 mm22 mm3 mmRockwell 85-90Flange Nut€8.39
S61604M12 x 1.7519 mm17 mm27 mm4 mmRockwell 85-90Flange Nut€8.87
T61605M16 x 224 mm21 mm33 mm5 mmRockwell 85-90Flange Nut€10.73
U61606M20 x 2.530 mm25 mm40 mm6 mmRockwell 85-90Flange Nut€14.75
V61607M24 x 336 mm32 mm49 mm7 mmRockwell 85-90Flange Nut€24.69
TE-CO -

Black Oxide Grade 2 Steel Spherical Assemblies Flange Nuts

StyleModelThread SizeHex WidthHex HeightFlange Dia.HardnessHex TypeMaterialGradePrice
A419091"-81 5/8"1"2"Rockwell 85-90Spherical Flange Nut And Washer AssemblySteelGrade 2€28.27
B419051/2"-137/8"1/2"1 1/4"Rockwell 85-90Spherical Flange Nut And Washer AssemblySteelGrade 2€11.85
C419073/4"-101 1/4"3/4"1 5/8"Rockwell 85-90Spherical Flange Nut And Washer AssemblySteelGrade 2€21.29
D419033/8"-1611/16"7/32"7/8"Rockwell 85-90Spherical Flange Nut And Washer AssemblySteelGrade 2€9.87
E419065/8"-111 39/64"5/8"1 3/4"Rockwell 85-90Spherical Flange Nut And Washer AssemblySteelGrade 2€14.64
COOPER B-LINE -

Plain Stainless Steel Flange Nuts

StyleModelThread SizeMaterialGradeFinish
A10243 C3/8"-16Stainless SteelNon GradedPlain
RFQ
B10242 C3/8"-16Stainless SteelNon GradedPlain
RFQ
B10242 D3/8"-16Stainless SteelNon GradedPlain
RFQ
B10243 D3/8"-16Stainless SteelNon GradedPlain
RFQ
A10243 A3/8"-16Stainless SteelNon GradedPlain
RFQ
A10243 B3/8"-16Stainless SteelNon GradedPlain
RFQ
FABORY -

Zinc Plated Class 8 Steel Standard Flange Nuts

StyleModelThread SizeHex WidthHex HeightFlange Dia.Nut StyleHex TypeMaterialClassPricePkg. Qty.
AM11590.050.0001M5 x 0.88 mm5 mm11.797 mmFlangeFlange NutSteelClass 8€9.28100
BM11590.060.0001M6 x 110 mm6 mm14.2 mmFlangeFlange NutSteelClass 8€8.08100
CM11590.080.0001M8 x 1.2513 mm8 mm17.9 mmFlangeFlange NutSteelClass 8€24.95100
DM11590.100.0001M10 x 1.515 mm10 mm21.8 mmFlangeFlange NutSteelClass 8€30.45100
EM11590.120.0001M12 x 1.7518 mm12 mm26 mmFlangeFlange NutSteelClass 8€39.71100
FM11590.140.0001M14 x 221 mm14 mm29.906 mmFlangeFlange NutSteelClass 8€111.5450
FM11590.160.0001M16 x 224 mm16 mm34.5 mmFlangeFlange NutSteelClass 8€70.7050
FM11590.200.0001M20 x 2.530 mm20 mm42.797 mmFlangeFlange NutSteelClass 8€112.1625
GM11590.240.0001M24 x 336 mm24 mm51 mmFlangeFlange NutSteelClass 8€222.2225
ACCURATE MANUFACTURED PRODUCTS GROUP -

Plain Grade 316H5 Stainless Steel Standard Flange Nuts

StyleModelThread SizeHex WidthHex HeightFlange Dia.Hex TypeResistance PropertiesFlange ThicknessTensile StrengthPrice
AZNF61602C#2-561/8"3/32"3/16"Flange Nut---€42.28
AZNF61604C#4-401/4"7/32"3/8"Flange Nut---€37.79
AZNF61606C#6-325/16"7/32"13/32"Flange Nut---€38.88
AZNF61608C#8-3211/32"1/4"15/32"Flange Nut---€41.25
AZNF61610C#10-243/8"5/16"1/2"Flange Nut---€43.75
AZNF61610F#10-323/8"5/16"1/2"Flange Nut---€43.75
AZNF61689C1 1/4"-71 13/16"1 1/4"2 1/4"Flange Nut---€294.86
AZNF61688C1"-81 5/8"1 1/4"2"Flange Nut---€70.70
AZNF61688F1"-141 5/8"1 1/4"2"Flange Nut---€88.74
AZNF61612C1/2"-137/8"11/16"1 1/8"Flange Nut---€162.60
AZNF61612F1/2"-207/8"11/16"1 1/8"Flange Nut---€162.60
AZNF61614C1/4"-201/2"5/16"5/8"Flange Nut---€63.12
AZNF61614F1/4"-281/2"5/16"-Flange Nut---€58.77
AZNF61634C3/4"-101 1/4"1"1 5/8"Flange Nut---€265.23
AZNF61634F3/4"-161 1/4"1"1 5/8"Flange Nut---€312.71
AZNF61638C3/8"-1611/16"1/2"7/8"Flange Nut---€88.27
AZNF61638F3/8"-2411/16"1/2"7/8"Flange Nut---€96.36
AZNF61658C5/8"-111 1/16"13/16"1 3/8"Flange Nut---€189.84
AZNF61658F5/8"-181 1/16"13/16"1 3/8"Flange Nut---€265.23
AZNF61651C5/16"-189/16"3/8"3/4"Flange Nut---€76.09
AZNF61651F5/16"-249/16"3/8"3/4"Flange Nut---€76.09
AZNF61678C7/8"-9--1 3/4"----€63.12
AZNF61671C7/16"-143/4"9/16"1"Flange Nut---€96.36
AZNF61671F7/16"-203/4"9/16"1"Flange Nut---€116.16
AZNF616M6M6 x 112.703125 mm5.65625 mm15.906 mmFlange NutAcid Resistant, Alkalis Resistant, Chlorides Resistant, Salt Water Resistant, Solvents Resistant2.29 mm75000 psi€442.09
FABORY -

Black Oxide Grade 8 Steel Serrated Flange Nuts

StyleModelThread SizeFlange Dia.Hex WidthHex HeightHex TypeFlange ThicknessFinishMaterialPricePkg. Qty.
AU12470.037.00013/8"-163/4"9/16"11/32"Flange Hex0.04"Phosphate And OilSteel€38.51100
BU12470.062.00015/8"-111.281"----Black OxideSteel€102.2625
TE-CO -

Plain Grade 2 Stainless Steel Standard Flange Nuts

StyleModelThread SizeHex WidthHex HeightFlange Dia.Flange ThicknessHardnessHex TypePrice
A476051/2"-137/8"1/2"1 1/8"0.188"Rockwell 27Flange Nut€28.94
B476011/4"-201/2"7/32"5/8"0.094"Rockwell 27Flange Nut€17.14
C476073/4"-101 1/4"3/4"1 5/8"1/4"Rockwell 27Flange Nut€42.21
D476033/8"-1611/16"3/8"7/8"1/8"Rockwell 27Flange Nut€17.83
E476065/8"-111 1/16"5/8"1 3/8"0.188"Rockwell 27Flange Nut€26.10
F476025/16"-189/16"1/4"3/4"1/8"Rockwell 27Flange Nut€17.13
TE-CO -

Black Oxide Grade 2 Steel Swivel Flange Nuts

StyleModelThread SizeHex WidthHex HeightFlange Dia.Flange ThicknessHardnessHex TypePrice
A420081"-81 5/8"49/64"2"0.469"Rockwell 85-90Swivel Flange Nut€41.69
B420041/2"-137/8"1/2"1 1/8"0.219"Rockwell 85-90Swivel Flange Nut€14.13
C420011/4"-201/2"1/4"5/8"1/8"Rockwell 85-90Swivel Flange Nut€9.96
D420063/4"-101 1/4"47/64"1 5/8"0.281"-Swivel Flange Nut€21.25
E420033/8"-1611/16"3/8"7/8"0.156"Rockwell 85-90Swivel Flange Nut€12.11
F420055/8"-111 1/16"21/32"1 3/8"1/4"Rockwell 85-90Swivel Flange Nut€18.97
TE-CO -

Black Oxide Grade 2 Stainless Steel Spherical Assemblies Flange Nuts

StyleModelThread SizeHex WidthHex HeightFlange Dia.HardnessHex TypeMaterialGradePrice
A419241/2"-137/8"17/32"1 1/4"Rockwell 27Spherical Flange Nut And Washer AssemblyStainless SteelGrade 2€46.14
B419211/4"-201/2"7/32"1 5/8"Rockwell 27Spherical Flange Nut And Washer AssemblyStainless SteelGrade 2€31.77
C419263/4"-101 1/4"3/4"1 5/8"Rockwell 27Spherical Flange Nut And Washer AssemblyStainless SteelGrade 2€70.70
D419233/8"-1611/16"3/8"7/8"Rockwell 27Spherical Flange Nut And Washer AssemblyStainless SteelGrade 2€39.79
E419255/8"-111 1/16"5/8"1 3/4"Rockwell 27Spherical Flange Nut And Washer AssemblyStainless SteelGrade 2€50.95
F419225/16"-189/16"9/32"1 3/4"Rockwell 27Spherical Flange Nut And Washer AssemblyStainless SteelGrade 2€34.62
GRAINGER -

Flange Nut, M6x1 Thread Size, SS, 6 mm Nut Ht., 14.203 mm Flange Dia.

ModelItemPrice (ex. VAT)
NUT931M6CCP9MCE€25.90
GRAINGER -

Flange Nut, 5/16 In - 18 Thread Size, SS, 11/16 In Flange Dia., Gr. 316, Plain

ModelItemPrice (ex. VAT)
NUT93151CCP9MCB€28.75
GRAINGER -

Flange Nut, 1/2 In - 13 Thread Size, SS, 1 In Flange Dia., Gr. 316, Plain

ModelItemPrice (ex. VAT)
NUT93112CCP9MBY€36.00
GRAINGER -

Flange Nut, M8x1.25 Thread Size, SS, 8 mm Nut Ht., 17.906 mm Flange Dia.

ModelItemPrice (ex. VAT)
NUT9311M8CCP9MCF€30.53
GRAINGER -

Flange Nut, M10x1.5 Thread Size, SS, 10 mm Nut Ht., Gr. 316H5, Plain

ModelItemPrice (ex. VAT)
NUT9311M10CCP9MCC€32.91
GRAINGER -

Flange Nut, 1/4 In - 20 Thread Size, SS, 19/32 In Flange Dia., Gr. 316, Plain

ModelItemPrice (ex. VAT)
NUT93114CCP9MBZ€25.75
GRAINGER -

Flange Nut, M12x1.75 Thread Size, SS, 12 mm Nut Ht., 26 mm Flange Dia.

ModelItemPrice (ex. VAT)
NUT9311M12CCP9MCD€39.26
GRAINGER -

Flange Nut, 3/8 In - 16 Thread Size, SS, 3/4 In Flange Dia., Gr. 316, Plain

ModelItemPrice (ex. VAT)
NUT93138CCP9MCA€31.72
RIDGID -

Nut, Flange 3/8

ModelItemPrice (ex. VAT)
20978BL8VRF€5.03
RFQ
RIDGID -

Flange Nuts

ModelItemPrice (ex. VAT)
47297BL9DAR€4.83
RFQ

Flange Nuts

A flange nut is a hex nut with an extended circular base spreading out from the bottom of the nut, acting as an integrated, non-spinning washer. Flange nuts are used to speed up assembly operations or in applications where their large bearing surface can cover big holes / slots. Raptor Supplies offers these flange nuts from brands like Accurate Mfd Products, AME, Disco, Fabory, Te-Co and Lisle.

Frequently Asked Questions

What standards do flange nuts comply with?

These flange nuts comply with DIN (German Institute for Standardisation), ISO (International Organization for Standardisation), JIS (Japanese Industrial Standards), NAS (National Aerospace Standards) and military standards.

What is a hex flange nut?

Hex flange nuts are hex nuts with a broad flanged portion near one end to serve as a built-in, non-spinning washer. Flange nuts spread the load placed on the nut over a broad surface area to prevent the deterioration of the installation material.

How to tighten a locking flange nut?

A flange nut can be tightened with a wrench or ratchet (of suitable size) after threading it onto the end of the bolt being installed.

How do flange nuts operate?

The in-built washer of flange nuts operates in the same way as a standard washer, offering a larger area to disperse the nut's pressure over the part being secured. Selected flanges come with serrations that bite into the material, making them less prone to loosening over time due to vibrations.