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Home / UNF Bolts, Nuts and Washers / Imp5/16 UNF Bolts, Nuts and Washers in Bright Zinc Plated (BZP) Steel

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	on UK orders of over £40 nett.
	on orders to Sweden over £80 nett.

Imperial Washers 5/16 inch in Bright Zinc Plated (BZP) Steel

This page lists all the various types of Imperial Washers 5/16 inch in Bright Zinc Plated (BZP) Steel that we currently offer. Use this page to help select suitable washers for 5/16 inch UNC or UNF bolts or screws.

The accompanying flat washer dimension table allows convenient comparison between the available 5/16 flat washer dimensions. The table only includes flat washers and, for completeness, may include washers only available in other materials.

5/16 Flat Washer Dimensions (inch)
Type	inner diameter	outer diameter	thickness
Table 3 BS 3410	0.328-0.333	0.620-0.625	0.040
SAE ASME B18.21.1-1999	0.343	0.687	0.062
USS ASME B18.21.1-1999	0.375	0.875	0.083
Commercial	0.355-0.340	0.760-0.745	0.045-0.055
US Military Spec 15795 v1	0.344	0.688 (11/16")	0.065
US Military Spec 15795 v2	0.375	0.875 (7/8")	0.083
Fender v1	5/16	1 1/4	0.05
Fender v2	5/16	1 1/2	0.05
Westfield Fasteners Ltd 2024

5/16 Flat Washer Dimensions (inch)
Type	inner diameter	outer diameter	thickness
Table 3 BS 3410	0.328-0.333	0.620-0.625	0.040
SAE ASME B18.21.1-1999	0.343	0.687	0.062
USS ASME B18.21.1-1999	0.375	0.875	0.083
Commercial	0.355-0.340	0.760-0.745	0.045-0.055
US Military Spec 15795 v1	0.344	0.688 (11/16")	0.065
US Military Spec 15795 v2	0.375	0.875 (7/8")	0.083
Fender v1	5/16	1 1/4	0.05
Fender v2	5/16	1 1/2	0.05
Westfield Fasteners Ltd 2024

Description	Sale Qtys	Price
Fender Washer 5/16 x 1-1/4 od in Zinc Plated Steel WF29278 - 640 in stock	sachet of 2 for £4.21 or box of 80 for £57.30 or bulk of 400 for £197.35	£0.00
Fender Washer 5/16 x 1-1/2 od in Zinc Plated Steel WF29279 - 257 in stock	sachet of 2 for £1.02 or box of 50 for £10.04 or bulk of 250 for £37.75	£0.00
5/16 SAE Flat Washer inch in Zinc Plated Steel WF39012 - 6589 in stock	sachet of 4 for £1.37 or box of 400 for £17.59 or bulk of 2000 for £61.26	£0.00
5/16 Shakeproof Lock Washer External Tooth inch in Zinc Plated Steel WF29206 - 215 in stock	sachet of 15 for £5.69 or box of 500 for £65.55 or bulk of 2500 for £224.17	£0.00
5/16 Spring Washer inch in Zinc Plated Steel WF28593 - 1706 in stock	sachet of 2 for £1.52 or box of 100 for £9.22 or bulk of 500 for £38.14	£0.00
5/16 USS Flat Washer inch in Zinc Plated Steel WF32457 - 684 in stock	sachet of 2 for £1.56 or box of 200 for £20.20 or bulk of 1000 for £68.71	£0.00

sachet of 2 for £4.21
or box of 80 for £57.30
or bulk of 400 for £197.35

Fender Washer 5/16 x 1-1/4 od in Zinc Plated Steel
WF29278 - 640 in stock

£0.00

sachet of 2 for £1.02
or box of 50 for £10.04
or bulk of 250 for £37.75

Fender Washer 5/16 x 1-1/2 od in Zinc Plated Steel
WF29279 - 257 in stock

£0.00

sachet of 4 for £1.37
or box of 400 for £17.59
or bulk of 2000 for £61.26

5/16 SAE Flat Washer inch in Zinc Plated Steel
WF39012 - 6589 in stock

£0.00

sachet of 15 for £5.69
or box of 500 for £65.55
or bulk of 2500 for £224.17

5/16 Shakeproof Lock Washer External Tooth inch in Zinc Plated Steel
WF29206 - 215 in stock

£0.00

sachet of 2 for £1.52
or box of 100 for £9.22
or bulk of 500 for £38.14

5/16 Spring Washer inch in Zinc Plated Steel
WF28593 - 1706 in stock

£0.00

sachet of 2 for £1.56
or box of 200 for £20.20
or bulk of 1000 for £68.71

5/16 USS Flat Washer inch in Zinc Plated Steel
WF32457 - 684 in stock

£0.00

Prices are subject to quantity discounts based on a sliding scale. Enter the desired quantity in the relevant box in the table above. This will automatically calculate a line price indicating the applicable rate for the quantities selected. All prices shown exclude VAT.