SAE Flat Washers

SAE Low Carbon Washer 

SAE Flat Washers
Bolt Size Outside Diameter Inside Diameter Thickness Approx. Quan. per 50#'s
Nom. Max Min Nom. Max Min American Standard (Gauge) Max Min
6 3/8 0.406 0.344 5/32 0.187 0.156 18 (3/64) .065 .036 39500
8 7/16 0.469 0.407 3/16 0.219 0.188 18 (3/64) .065 .036 29500
3/16 1/2 0.531 0.469 7/32 0.250 0.219 18 (3/64) .065 .036 22750
12 9/16 0.583 0.531 1/4 0.281 0.250 16 (1/16) .080 .051 14700
1/4 5/8 0.656 0.594 9/32 0.312 0.281 15 (1/16) .080 .051 11100
5/16 11/16 0.719 0.657 11/32 0.375 0.344 16 (1/16) .080 .051 9750
3/8 13/16 0.843 0.781 13/32 0.437 0.406 16 (1/16) .080 .051 7000
7/16 59/64 0.953 0.891 15/32 0.500 0.469 16 (1/16) .080 .051 5500
1/2 1-1/16 1.093 1.031 17/32 0.562 0.531 13 (3/32) .121 .074 2800
9/16 1-3/16 1.219 1.157 19/32 0.625 0.594 13 (3/32) .121 .074 2250
5/8 1-5/16 1.343 1.281 21/32 0.687 0.656 13 (3/32) .121 .074 1850
3/4 1-1/2 1.531 1.469 13/16 .0843 0.812 10 (9/64) .160 .108 1050
7/8 1-3/4 1.781 1.719 15/16 0.969 0.938 10 (9/64) .160 .108 775
1" 2" 2.031 1.969 1-1/16 1.094 1.062 10 (9/64) .160 .108 585
1-1/8 2-1/4 2.313 2.187 1-3/16 1.251 1.188 10 (9/64) .160 .108 460
1-1/4 2-1/2 2.563 2.437 1-5/16 1.375 1.312 9 (5/32) .192 .136 335
1-3/8 2-3/4 2.813 2.687 1-7/16 1.501 1.438 9 (5/32) .213 .136 275
1-1/2 3" 3.063 2.937 1-9/16 1.625 1.562 9 (5/32) .213 .153 230