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.

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

COOPER B-LINE -

Plain Stainless Steel Flange Nuts

Style	Model	Thread Size	Material	Grade	Finish
A	10243 C	3/8"-16	Stainless Steel	Non Graded	Plain	RFQ
B	10243 D	3/8"-16	Stainless Steel	Non Graded	Plain	RFQ
B	10242 D	3/8"-16	Stainless Steel	Non Graded	Plain	RFQ
B	10242 C	3/8"-16	Stainless Steel	Non Graded	Plain	RFQ
A	10243 B	3/8"-16	Stainless Steel	Non Graded	Plain	RFQ
A	10243 A	3/8"-16	Stainless Steel	Non Graded	Plain	RFQ

ACCURATE MANUFACTURED PRODUCTS GROUP -

Plain Grade 316H5 Stainless Steel Standard Flange Nuts

Style	Model	Thread Size	Flange Dia.	Width	Material	Grade	Finish	Price (ex. VAT)
A	ZNF61602C	#2-56	3/16"	1/8"	Stainless Steel	Grade 316H5	Plain	€39.84
A	ZNF61604C	#4-40	3/8"	1/4"	Stainless Steel	Grade 316H5	Plain	€35.60
A	ZNF61606C	#6-32	13/32"	5/16"	Stainless Steel	Grade 316H5	Plain	€36.63
A	ZNF61608C	#8-32	15/32"	11/32"	Stainless Steel	Grade 316H5	Plain	€38.86
A	ZNF61610C	#10-24	1/2"	3/8"	Stainless Steel	Grade 316H5	Plain	€41.22
A	ZNF61610F	#10-32	1/2"	3/8"	Stainless Steel	Grade 316H5	Plain	€41.22
A	ZNF61689C	1 1/4"-7	2 1/4"	1 13/16"	Stainless Steel	Grade 316H5	Plain	€277.77
A	ZNF61688C	1"-8	2"	1 5/8"	Stainless Steel	Grade 316H5	Plain	€68.55
A	ZNF61688F	1"-14	2"	1 5/8"	Stainless Steel	Grade 316H5	Plain	€83.58
A	ZNF61612C	1/2"-13	1 1/8"	7/8"	Stainless Steel	Grade 316H5	Plain	€153.19
A	ZNF61612F	1/2"-20	1 1/8"	7/8"	Stainless Steel	Grade 316H5	Plain	€153.19
A	ZNF61614C	1/4"-20	5/8"	-	Stainless Steel	Grade 316H5	Plain	€59.45
A	ZNF61614F	1/4"-28	-	1/2"	Stainless Steel	Grade 316H5	Plain	€55.36
A	ZNF61634C	3/4"-10	1 5/8"	1 1/4"	Stainless Steel	Grade 316H5	Plain	€237.55
A	ZNF61634F	3/4"-16	1 5/8"	1 1/4"	Stainless Steel	Grade 316H5	Plain	€280.09
A	ZNF61638C	3/8"-16	7/8"	11/16"	Stainless Steel	Grade 316H5	Plain	€83.15
A	ZNF61638F	3/8"-24	7/8"	11/16"	Stainless Steel	Grade 316H5	Plain	€90.76
A	ZNF61658C	5/8"-11	1 3/8"	1 1/16"	Stainless Steel	Grade 316H5	Plain	€178.82
A	ZNF61658F	5/8"-18	1 3/8"	1 1/16"	Stainless Steel	Grade 316H5	Plain	€237.55
A	ZNF61651C	5/16"-18	3/4"	9/16"	Stainless Steel	Grade 316H5	Plain	€71.68
A	ZNF61651F	5/16"-24	3/4"	9/16"	Stainless Steel	Grade 316H5	Plain	€71.68
A	ZNF61678C	7/8"-9	1 3/4"	1 7/16"	Stainless Steel	Grade 316H5	Plain	€59.45
A	ZNF61671C	7/16"-14	1"	3/4"	Stainless Steel	Grade 316H5	Plain	€90.76
A	ZNF61671F	7/16"-20	1"	3/4"	Stainless Steel	Grade 316H5	Plain	€109.41
A	ZNF616M6	M6 x 1	15.9 mm	12.7 mm	Stainless Steel	Grade 316H5	Plain	€395.93

TE-CO -

Plain Grade 2 Stainless Steel Standard Flange Nuts

Style	Model	Thread Size	Flange Dia.	Width	Hardness	Material	Grade	Finish	Price (ex. VAT)
A	47605	1/2"-13	1 1/8"	7/8"	Rockwell 27	Stainless Steel	Grade 2	Plain	€25.36
B	47601	1/4"-20	5/8"	1/2"	Rockwell 27	Stainless Steel	Grade 2	Plain	€15.60
C	47607	3/4"-10	1 5/8"	1 1/4"	Rockwell 27	Stainless Steel	Grade 2	Plain	€38.19
D	47603	3/8"-16	7/8"	11/16"	Rockwell 27	Stainless Steel	Grade 2	Plain	€16.18
E	47606	5/8"-11	1 3/8"	1 1/16"	Rockwell 27	Stainless Steel	Grade 2	Plain	€25.66
F	47602	5/16"-18	3/4"	9/16"	Rockwell 27	Stainless Steel	Grade 2	Plain	€15.01

TE-CO -

Black Oxide Grade 2 Steel Standard Flange Nuts

Style	Model	Thread Size	Flange Dia.	Width	Hardness	Material	Grade	Finish	Price (ex. VAT)
A	41609	1"-8	2"	1 5/8"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€20.68
B	41709	1"-14	2"	1 5/8"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€20.58
C	41605	1/2"-13	1 1/8"	7/8"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€6.06
D	41705	1/2"-20	1 1/8"	3/4"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€5.82
E	41601	1/4"-20	5/8"	1/2"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€3.84
F	41701	1/4"-28	5/8"	1/2"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€5.36
G	41607	3/4"-10	1 5/8"	1 1/4"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€11.55
H	41707	3/4"-16	1 5/8"	1 1/4"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€12.95
I	41603	3/8"-16	7/8"	11/16"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€5.03
J	41703	3/8"-24	7/8"	11/16"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€5.20
K	41606	5/8"-11	1 3/8"	1 1/16"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€7.87
L	41706	5/8"-18	1 3/8"	1 3/8"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€8.50
M	41602	5/16"-18	3/4"	9/16"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€4.61
N	41702	5/16"-24	3/4"	9/16"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€5.48
O	41608	7/8"-9	1 3/4"	1 7/16"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€16.47
P	61601	M6 x 1	16 mm	10 mm	Rockwell 85-90	Steel	Grade 2	Black Oxide	€6.16
Q	61602	M8 x 1.25	19 mm	13 mm	Rockwell 85-90	Steel	Grade 2	Black Oxide	€6.31
R	61603	M10 x 1.5	22 mm	17 mm	Rockwell 85-90	Steel	Grade 2	Black Oxide	€7.71
S	61604	M12 x 1.75	27 mm	19 mm	Rockwell 85-90	Steel	Grade 2	Black Oxide	€8.16
T	61605	M16 x 2	33 mm	24 mm	Rockwell 85-90	Steel	Grade 2	Black Oxide	€10.23
U	61606	M20 x 2.5	40 mm	30 mm	Rockwell 85-90	Steel	Grade 2	Black Oxide	€14.47
V	61607	M24 x 3	49 mm	36 mm	Rockwell 85-90	Steel	Grade 2	Black Oxide	€24.72

TE-CO -

Black Oxide Grade 2 Steel Swivel Flange Nuts

Style	Model	Thread Size	Flange Dia.	Width	Hardness	Material	Grade	Finish	Price (ex. VAT)
A	42008	1"-8	2"	1 5/8"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€38.89
B	42004	1/2"-13	1 1/8"	7/8"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€13.13
C	42001	1/4"-20	5/8"	1/2"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€9.32
D	42006	3/4"-10	1 5/8"	1 1/4"	-	Steel	Grade 2	Black Oxide	€19.58
E	42003	3/8"-16	7/8"	11/16"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€11.31
F	42005	5/8"-11	1 3/8"	1 1/16"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€17.37

TE-CO -

Black Oxide Grade 2 Stainless Steel Spherical Assemblies Flange Nuts

Style	Model	Thread Size	Flange Dia.	Width	Hardness	Material	Grade	Finish	Price (ex. VAT)
A	41924	1/2"-13	1 1/4"	7/8"	Rockwell 27	Stainless Steel	Grade 2	Black Oxide	€43.07
B	41921	1/4"-20	1 5/8"	1/2"	Rockwell 27	Stainless Steel	Grade 2	Black Oxide	€29.65
C	41926	3/4"-10	1 5/8"	1 1/4"	Rockwell 27	Stainless Steel	Grade 2	Black Oxide	€64.59
D	41923	3/8"-16	7/8"	11/16"	Rockwell 27	Stainless Steel	Grade 2	Black Oxide	€37.13
E	41925	5/8"-11	1 3/4"	1 1/16"	Rockwell 27	Stainless Steel	Grade 2	Black Oxide	€47.55
F	41922	5/16"-18	1 3/4"	9/16"	Rockwell 27	Stainless Steel	Grade 2	Black Oxide	€32.31

FABORY -

Zinc Plated Class 8 Steel Standard Flange Nuts

Style	Model	Thread Size	Flange Dia.	Width	Nut Style	Material	Class	Finish	Price (ex. VAT)	Pkg. Qty.
A	M11590.050.0001	M5 x 0.8	11.8 mm	8 mm	Flange	Steel	Class 8	Zinc Plated	€6.45	100
B	M11590.060.0001	M6 x 1	14.2 mm	10 mm	Flange	Steel	Class 8	Zinc Plated	€4.99	100
C	M11590.080.0001	M8 x 1.25	17.9 mm	13 mm	Flange	Steel	Class 8	Zinc Plated	€28.12	100
D	M11590.100.0001	M10 x 1.5	21.8 mm	15 mm	Flange	Steel	Class 8	Zinc Plated	€15.93	100
E	M11590.120.0001	M12 x 1.75	26 mm	18 mm	Flange	Steel	Class 8	Zinc Plated	€23.60	100
F	M11590.140.0001	M14 x 2	29.9 mm	21 mm	Flange	Steel	Class 8	Zinc Plated	€78.98	50
F	M11590.160.0001	M16 x 2	34.5 mm	24 mm	Flange	Steel	Class 8	Zinc Plated	€43.85	50
F	M11590.200.0001	M20 x 2.5	42.8 mm	30 mm	Flange	Steel	Class 8	Zinc Plated	€72.93	25
G	M11590.240.0001	M24 x 3	51 mm	36 mm	Flange	Steel	Class 8	Zinc Plated	€131.01	25

TE-CO -

Black Oxide Grade 2 Steel Spherical Assemblies Flange Nuts

Style	Model	Thread Size	Flange Dia.	Width	Hardness	Material	Grade	Finish	Price (ex. VAT)
A	41909	1"-8	2"	1 5/8"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€27.34
B	41905	1/2"-13	1 1/4"	7/8"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€11.06
C	41907	3/4"-10	1 5/8"	1 1/4"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€19.88
D	41903	3/8"-16	7/8"	11/16"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€9.21
E	41906	5/8"-11	1 3/4"	1 1/16"	Rockwell 85-90	Steel	Grade 2	Black Oxide	€13.66

FABORY -

Black Oxide Grade 8 Steel Serrated Flange Nuts

Style	Model	Thread Size	Flange Dia.	Width	Finish	Material	Grade	Price (ex. VAT)	Pkg. Qty.
A	U12470.037.0001	3/8"-16	3/4"	9/16"	Phosphate And Oil	Steel	Grade 8	€44.71	100
B	U12470.062.0001	5/8"-11	1.281"	1.281"	Black Oxide	Steel	Grade 8	€118.63	25

GRAINGER -

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

Model	Item	Price (ex. VAT)	Pkg. Qty.
NUT931M6C	CP9MCE	€24.41	1

GRAINGER -

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

Model	Item	Price (ex. VAT)	Pkg. Qty.
NUT9311M10C	CP9MCC	€31.01	1

GRAINGER -

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

Model	Item	Price (ex. VAT)	Pkg. Qty.
NUT9311M12C	CP9MCD	€36.99	1

GRAINGER -

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

Model	Item	Price (ex. VAT)	Pkg. Qty.
NUT93138C	CP9MCA	€29.88	1

GRAINGER -

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

Model	Item	Price (ex. VAT)	Pkg. Qty.
NUT93112C	CP9MBY	€33.90	1

GRAINGER -

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

Model	Item	Price (ex. VAT)	Pkg. Qty.
NUT9311M8C	CP9MCF	€28.78	1

GRAINGER -

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

Model	Item	Price (ex. VAT)	Pkg. Qty.
NUT93114C	CP9MBZ	€24.27	1

GRAINGER -

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

Model	Item	Price (ex. VAT)	Pkg. Qty.
NUT93151C	CP9MCB	€27.07	1

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.

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Flange Nuts

Plain Stainless Steel Flange Nuts

Plain Grade 316H5 Stainless Steel Standard Flange Nuts

Plain Grade 2 Stainless Steel Standard Flange Nuts

Black Oxide Grade 2 Steel Standard Flange Nuts

Black Oxide Grade 2 Steel Swivel Flange Nuts

Black Oxide Grade 2 Stainless Steel Spherical Assemblies Flange Nuts

Zinc Plated Class 8 Steel Standard Flange Nuts

Black Oxide Grade 2 Steel Spherical Assemblies Flange Nuts

Black Oxide Grade 8 Steel Serrated Flange Nuts

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

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

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

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

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

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

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

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

Flange Nuts

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Flange Nuts

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

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

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

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

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

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

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

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

Flange Nuts

Frequently Asked Questions

What standards do flange nuts comply with?

What is a hex flange nut?

How to tighten a locking flange nut?

How do flange nuts operate?

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