EXTSW 5/16” ID x 1 5/8” OD x 1/4” Thick 316 Alloy Stainless Washers
Actual dimensions .323" ID x .1.615" OD x .250 Thick
(+/- .003" on all dimensions)
.030 inch Radius OD / slightly countersunk ID (no sharp edges)
Made in USA. 316 Stainless has the ULTIMATE corrosion resistance.