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 Spherical Assemblies Flange Nuts

StyleModelThread SizeFlange Dia.HardnessMaterialGradeFinishPrice (inc. VAT)
A419091"-82"Rockwell 85-90SteelGrade 2Black Oxide£22.63
B419051/2"-131 1/4"Rockwell 85-90SteelGrade 2Black Oxide£9.21
C419073/4"-101 5/8"Rockwell 85-90SteelGrade 2Black Oxide£16.33
D419033/8"-167/8"Rockwell 85-90SteelGrade 2Black Oxide£7.91
E419065/8"-111 3/4"Rockwell 85-90SteelGrade 2Black Oxide£11.07
COOPER B-LINE -

Plain Stainless Steel Flange Nuts

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

Black Oxide Grade 2 Steel Swivel Flange Nuts

StyleModelThread SizeFlange Dia.HardnessMaterialGradeFinishPrice (inc. VAT)
A420081"-82"Rockwell 85-90SteelGrade 2Black Oxide£30.24
B420041/2"-131 1/8"Rockwell 85-90SteelGrade 2Black Oxide£10.54
C420011/4"-205/8"Rockwell 85-90SteelGrade 2Black Oxide£7.15
D420063/4"-101 5/8"Rockwell 85-90SteelGrade 2Black Oxide£15.40
E420033/8"-167/8"Rockwell 85-90SteelGrade 2Black Oxide£8.70
F420055/8"-111 3/8"Rockwell 85-90SteelGrade 2Black Oxide£13.84
ACCURATE MANUFACTURED PRODUCTS GROUP -

Plain Grade 316H5 Stainless Steel Standard Flange Nuts

StyleModelThread SizeFlange Dia.MaterialGradeFinishPrice (inc. VAT)
AZNF61602C#2-563/16"Stainless SteelGrade 316H5Plain£32.49
AZNF61604C#4-403/8"Stainless SteelGrade 316H5Plain£29.02
AZNF61606C#6-3213/32"Stainless SteelGrade 316H5Plain£29.86
AZNF61608C#8-3215/32"Stainless SteelGrade 316H5Plain£31.69
AZNF61610C#10-241/2"Stainless SteelGrade 316H5Plain£33.60
AZNF61610F#10-321/2"Stainless SteelGrade 316H5Plain£33.60
AZNF61689C1 1/4"-72 1/4"Stainless SteelGrade 316H5Plain£226.51
AZNF61688C1"-82"Stainless SteelGrade 316H5Plain£55.91
AZNF61688F1"-142"Stainless SteelGrade 316H5Plain£68.17
AZNF61612C1/2"-131 1/8"Stainless SteelGrade 316H5Plain£124.92
AZNF61612F1/2"-201 1/8"Stainless SteelGrade 316H5Plain£123.26
AZNF61614C1/4"-205/8"Stainless SteelGrade 316H5Plain£48.48
AZNF61614F1/4"-285/8"Stainless SteelGrade 316H5Plain£45.14
AZNF61634C3/4"-101 5/8"Stainless SteelGrade 316H5Plain£169.85
AZNF61634F3/4"-161 5/8"Stainless SteelGrade 316H5Plain£200.27
AZNF61638C3/8"-167/8"Stainless SteelGrade 316H5Plain£67.81
AZNF61638F3/8"-247/8"Stainless SteelGrade 316H5Plain£74.02
AZNF61658C5/8"-111 3/8"Stainless SteelGrade 316H5Plain£145.83
AZNF61658F5/8"-181 3/8"Stainless SteelGrade 316H5Plain£169.85
AZNF61651C5/16"-183/4"Stainless SteelGrade 316H5Plain£58.46
AZNF61651F5/16"-243/4"Stainless SteelGrade 316H5Plain£58.46
AZNF61678C7/8"-91 3/4"Stainless SteelGrade 316H5Plain£48.48
AZNF61671C7/16"-141"Stainless SteelGrade 316H5Plain£74.02
AZNF61671F7/16"-201"Stainless SteelGrade 316H5Plain£89.22
AZNF616M6M6 x 115.9 mmStainless SteelGrade 316H5Plain£283.11
TE-CO -

Plain Grade 2 Stainless Steel Standard Flange Nuts

StyleModelThread SizeFlange Dia.HardnessMaterialGradeFinishPrice (inc. VAT)
A476051/2"-131 1/8"Rockwell 27Stainless SteelGrade 2Plain£21.82
B476011/4"-205/8"Rockwell 27Stainless SteelGrade 2Plain£12.53
C476073/4"-101 5/8"Rockwell 27Stainless SteelGrade 2Plain£30.71
D476033/8"-167/8"Rockwell 27Stainless SteelGrade 2Plain£12.01
E476065/8"-111 3/8"Rockwell 27Stainless SteelGrade 2Plain£19.48
F476025/16"-183/4"Rockwell 27Stainless SteelGrade 2Plain£12.12
TE-CO -

Black Oxide Grade 2 Stainless Steel Spherical Assemblies Flange Nuts

StyleModelThread SizeFlange Dia.HardnessMaterialGradeFinishPrice (inc. VAT)
A419241/2"-131 1/4"Rockwell 27Stainless SteelGrade 2Plain£34.63
B419211/4"-201 5/8"Rockwell 27Stainless SteelGrade 2Plain£24.03
C419263/4"-101 5/8"Rockwell 27Stainless SteelGrade 2Plain£55.45
D419233/8"-167/8"Rockwell 27Stainless SteelGrade 2Plain£30.08
E419255/8"-111 3/4"Rockwell 27Stainless SteelGrade 2Plain£38.78
F419225/16"-181 3/4"Rockwell 27Stainless SteelGrade 2Plain£25.99
TE-CO -

Black Oxide Grade 2 Steel Standard Flange Nuts

StyleModelThread SizeFlange Dia.HardnessMaterialGradeFinishPrice (inc. VAT)
A416091"-82"Rockwell 85-90SteelGrade 2Black Oxide£16.33
B417091"-142"Rockwell 85-90SteelGrade 2Black Oxide£15.78
C416051/2"-131 1/8"Rockwell 85-90SteelGrade 2Black Oxide£4.75
D417051/2"-201 1/8"Rockwell 85-90SteelGrade 2Black Oxide£4.78
E416011/4"-205/8"Rockwell 85-90SteelGrade 2Black Oxide£3.35
F417011/4"-285/8"Rockwell 85-90SteelGrade 2Black Oxide£4.42
G416073/4"-101 5/8"Rockwell 85-90SteelGrade 2Black Oxide£9.18
H417073/4"-161 5/8"Rockwell 85-90SteelGrade 2Black Oxide£11.66
I416033/8"-167/8"Rockwell 85-90SteelGrade 2Black Oxide£4.16
J417033/8"-247/8"Rockwell 85-90SteelGrade 2Black Oxide£4.51
K416065/8"-111 3/8"Rockwell 85-90SteelGrade 2Black Oxide£6.17
L417065/8"-181 3/8"Rockwell 85-90SteelGrade 2Black Oxide£6.81
M416025/16"-183/4"Rockwell 85-90SteelGrade 2Black Oxide£3.75
N417025/16"-243/4"Rockwell 85-90SteelGrade 2Black Oxide£4.56
O416087/8"-91 3/4"Rockwell 85-90SteelGrade 2Black Oxide£13.28
P61601M6 x 116 mmRockwell 85-90SteelGrade 2Black Oxide£5.05
Q61602M8 x 1.2519 mmRockwell 85-90SteelGrade 2Black Oxide£5.20
R61603M10 x 1.522 mmRockwell 85-90SteelGrade 2Black Oxide£6.30
S61604M12 x 1.7527 mmRockwell 85-90SteelGrade 2Black Oxide£6.73
T61605M16 x 233 mmRockwell 85-90SteelGrade 2Black Oxide£8.00
U61606M20 x 2.540 mmRockwell 85-90SteelGrade 2Black Oxide£11.07
V61607M24 x 349 mmRockwell 85-90SteelGrade 2Black Oxide£18.55
FABORY -

Zinc Plated Class 8 Steel Standard Flange Nuts

StyleModelThread SizeFlange Dia.Nut StyleMaterialClassFinishPrice (inc. VAT)Pkg. Qty.
AM11590.050.0001M5 x 0.811.8 mmFlangeSteelClass 8Zinc Plated£4.51100
BM11590.060.0001M6 x 114.2 mmFlangeSteelClass 8Zinc Plated£3.65100
CM11590.080.0001M8 x 1.2517.9 mmFlangeSteelClass 8Zinc Plated£18.98100
DL11590.080.0001M8 x 1.2517.9 mm-SteelClass 8Zinc Plated-1
RFQ
EL11590.100.0001M10 x 1.521.8 mm-SteelClass 8Zinc Plated£87.41600
FM11590.100.0001M10 x 1.521.8 mmFlangeSteelClass 8Zinc Plated£10.28100
GM11590.120.0001M12 x 1.7526 mmFlangeSteelClass 8Zinc Plated£24.02100
HM11590.140.0001M14 x 229.9 mmFlangeSteelClass 8Zinc Plated£55.1550
IL11590.160.0001M16 x 234.5 mm-SteelClass 8Zinc Plated£116.03200
HM11590.160.0001M16 x 234.5 mmFlangeSteelClass 8Zinc Plated£27.4350
HM11590.200.0001M20 x 2.542.8 mmFlangeSteelClass 8Zinc Plated£50.4225
JM11590.240.0001M24 x 351 mmFlangeSteelClass 8Zinc Plated£90.5625
FABORY -

Black Oxide Grade 8 Steel Serrated Flange Nuts

StyleModelThread SizeFlange Dia.MaterialGradeFinishPrice (inc. VAT)Pkg. Qty.
AU12470.037.00013/8"-163/4"SteelGrade 8Black Oxide£30.86100
BU12470.062.00015/8"-111.281"SteelGrade 8Black Oxide£81.9425
GRAINGER -

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

ModelItemPrice (inc. VAT)Pkg. Qty.
NUT93138CCP9MCA£24.261
GRAINGER -

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

ModelItemPrice (inc. VAT)Pkg. Qty.
NUT93114CCP9MBZ£19.791
GRAINGER -

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

ModelItemPrice (inc. VAT)Pkg. Qty.
NUT93112CCP9MBY£27.641
GRAINGER -

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

ModelItemPrice (inc. VAT)Pkg. Qty.
NUT931M6CCP9MCE£19.901
GRAINGER -

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

ModelItemPrice (inc. VAT)Pkg. Qty.
NUT9311M12CCP9MCD£30.161
GRAINGER -

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

ModelItemPrice (inc. VAT)Pkg. Qty.
NUT9311M10CCP9MCC£25.271
GRAINGER -

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

ModelItemPrice (inc. VAT)Pkg. Qty.
NUT93151CCP9MCB£22.091
GRAINGER -

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

ModelItemPrice (inc. VAT)Pkg. Qty.
NUT9311M8CCP9MCF£23.461

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.

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