1U.S. Standard Washers Standard Washers developed to satisfy engineering requirements in the majority of industrial applications in all fields of manufacturing, maintenance and repair. The Standard Washers O.D., I.D. and thickness specifications were developed to meet the optimum of applications. Bolt Size In. Outside Dia. In. Inside I.D. In. Thickness Approx. Lbs. per M Pcs. Approx. No./Pcs. 50 Lb. Carton Approx. No./Pcs. Per Lb. 3/16 9/16 1/4 .036/.065 2.8 18,050 361 1/4 3/4 5/16 .051/.080 6.7 7,450 149 5/16 7/8 3/8 .064/.104 11.5 4,350 87 3/8 1 7/16 .064/.104 14.9 3,350 67 7/16 1-1/4 1/2 .064/.104 24.4 2,050 41 1/2 1-3/8 9/16 .086/.132 38.5 1,300 26 9/16 1-15/32 5/8 .086/.132 45.5 1,100 22 5/8 1-3/4 11/16 .108/.160 77 650 13 3/4 2 13/16 .122/.177 110 455 9.1 7/8 2-1/4 15/16 .136/.192 153 325 6.5 1 2-1/2 1-1/16 .136/.192 188 265 5.3 1-1/8 2-3/4 1-1/4 .136/.192 220 225 4.5 1-1/4 3 1-3/8 .136/.192 260 190 3.8 1-3/8 3-1/4 1-1/2 .153/.213 333 150 3 1-1/2 3-1/2 1-5/8 .153/.213 385 130 2.6 1-5/8 3-3/4 1-3/4 .153/.213 448 115 2.3 1-3/4 4 1-7/8 .153/.213 500 100 2 1-7/8 4-1/4 2 .153/.213 569 90 1.8 2 4-1/2 2-1/8 .153/.213 630 79 1.6 2-1/4 4-3/4 2-3/8 .193/.248 826 60 1.2 2-1/2 5 2-5/8 .210/.280 961 52 1 2-3/4 5-1/4 2-7/8 .228/.310 1100 45 .9 3 5-1/2 3-1/8 .249/.327 1300 43 .8 SAE Washers Specifications for SAE w ashers were developed and specified by the Society of Automotive Engineers to meet the requirements in most of the applications in its field. They are of smaller O.D. and thinner gauges than their counterpart bolt sizes of U.S. Standard washers. Bolt Size In. Outside Dia. In. Inside Dia. In. Thickness Approx. Lbs. per M Pcs. Approx. No./Pcs. 50 Lb. Carton Approx. No./Pcs. P...
