USS Washers

USS Flat Washers

 

A thin, flat, circular steel part with a centrally located hole.

Washers are designed for assembly around a bolt or screw, between the bearing surface of the fastener and the part to which it’s attached. Flat washers are used to improve stress distribution, and to span large clearance holes. USS washers are designed to meet the majority of industrial applications in manufacturing, maintenance and repair.

Dimensions

Bolt Size Outside Diameter Inside Diameter Thickness
Nom. Max Min Nom. Max Min American Standard (Gauge) Max Min
3/16 9/16 0.593 0.531 1/4 0.281 0.250 18 (3/64) 0.65 0.36
1/4 3/4 0.781 0.719 5/16 0.343 0.312 16 (1/16) .080 0.51
5/16 7/8 0.906 0.844 3/8 0.406 0.375 14 (5/64) .104 0.64
3/8 1″ 1.031 0.969 7/16 0.469 0.438 14 (5/64) .104 .064
7/16 1-1/4 1.281 1.219 1/2 0.531 0.500 14 (5/64) .104 0.64
1/2 1-3/8 1.406 1.344 9/16 0.593 0.562 12 (7/64) .132 0.86
9/16 1-1/2 1.531 1.469 5/8 0.656 0.625 21 (7/64) .132 0.86
5/8 1-3/4 1.781 1.719 11/16 0.719 0.688 10 (9/64) .160 .108
3/4 2″ 2.031 1.969 13/16 0.843 0.812 9 (5/32) .177 .122
7/8 2-1/4 2.281 2.219 15/16 0.969 0.938 8 (11/64) .192 .136
1″ 2-1/2 2.531 2.469 1-1/16 1.094 1.063 8 (11/64) .192 .136
1-1/8 2-3/4 2.781 2.719 1-1/4 1.281 1.250 8(11/64) .192 .136
1-1/4 3″ 3.031 2.969 1-3/8 1.406 1.375 8 (11/64) .192 .136
1-3/8 3-1/4 3.281 3.219 1-1/2 1.531 1.500 7 (3/16) .213 .153
1-1/2 3-1/2 3.631 3.469 1-5/8 1.656 1.625 7 (3/16) .213 .153
1-5/8 3-3/4 3.813 3.687 1-3/4 1.813 1.750 7 (3/16) .213 .153
1-3/4 4″ 4.063 3.937 1-7/8 1.938 1.875 7 (3/16) .213 .153
1-7/8 4-1/4 4.313 4.187 2 2.063 2.000 7 (3/16) .213 .153
2″ 4-1/2 4.563 4.437 2-1/8 2.188 2.125 7 (3/16) .213 .153
2-1/4 4-3/4 4.813 4.687 2-3/8 2.438 2.375 5 (7/32) .248 .193
2-1/2 5″ 5.063 4.937 2-5/8 2.688 2.625 4 (15/64) .280 .210
2-3/4 5-1/4 5.313 5.187 2-7/8 2.938 2.875 3 (1/4) .310 .228
3″ 5-1/2 5.563 5.437 3-1/8 3.188 3.125 2 (5/32) .327 .249

 

Téléphone: 450-420-1839