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

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Imperial Washers 5/16 inch in Through (Thru) Hardened Bright Zinc Plated Steel

This page lists all the various types of Imperial Washers 5/16 inch in Through (Thru) Hardened Bright Zinc Plated 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

Image	Description	Sale Qtys	Qty	Price	Breakdown	Despatch Estimate
	SAE Flat Washer 5/16 inch in Zinc Plated Through Hardened Steel WF28520			£0.00
	USS Flat Washer 5/16 inch in Zinc Plated Through Hardened Steel WF32447			£0.00

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SAE Flat Washer 5/16 inch in Zinc Plated Through Hardened Steel
WF28520

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USS Flat Washer 5/16 inch in Zinc Plated Through Hardened Steel
WF32447

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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.