USS Flat Washer (in)

on 14 January 2016. Posted in Fastener Datasheets

USS Flat Washer (in) Datasheet

Bolt Size	Outside Diameter			Inside Diameter			Thickness
Bolt Size	Basic	Max	Min	Basic	Max	Min	Max	Min
3/16	9/16	0.593	0.531	1/4	0.281	0.250	0.65	0.36
1/4	3/4	0.781	0.719	5/16	0.343	0.312	.080	0.51
5/16	7/8	0.906	0.844	3/8	0.406	0.375	.104	0.64
3/8	1	1.031	0.969	7/16	0.469	0.438	.104	.064
7/16	1 1/4	1.281	1.219	1/2	0.531	0.500	.104	0.64
1/2	1 3/8	1.406	1.344	9/16	0.593	0.562	.132	0.86
9/16	1 1/2	1.531	1.469	5/8	0.656	0.625	.132	0.86
5/8	1 3/4	1.781	1.719	11/16	0.719	0.688	.160	.108
3/4	2	2.031	1.969	13/16	0.843	0.812	.177	.122
7/8	2 1/4	2.281	2.219	15/16	0.969	0.938	.192	.136
1	2 1/2	2.531	2.469	1 1/16	1.094	1.063	.192	.136
1 1/8	2 3/4	2.781	2.719	1 1/4	1.281	1.250	.192	.136
1 1/4	3	3.031	2.969	1 3/8	1.406	1.375	.192	.136
1 3/8	3 1/4	3.281	3.219	1 1/2	1.531	1.500	.213	.153
1 1/2	3 1/2	3.631	3.469	1 5/8	1.656	1.625	.213	.153
1 5/8	3 3/4	3.813	3.687	1 3/4	1.813	1.750	.213	.153
1 3/4	4	4.063	3.937	1 7/8	1.938	1.875	.213	.153
1 7/8	4 1/4	4.313	4.187	2	2.063	2.000	.213	.153
2	4 1/2	4.563	4.437	2 1/8	2.188	2.125	.213	.153
2 1/4	4 3/4	4.813	4.687	2 3/8	2.438	2.375	.248	.193
2 1/2	5	5.063	4.937	2 5/8	2.688	2.625	.280	.210
2 3/4	5 1/4	5.313	5.187	2 7/8	2.938	2.875	.310	.228
3	5 1/2	5.563	5.437	3 1/8	3.188	3.125	.327	.249