EXTSW 9/16” ID x 1 1/8” OD x 1/8” thick 316 stainless washer
Actual size .572" ID x 1.115” OD x .063" thick
(+/-.003" on all dimensions)
.030" radius OD / slightly countersunk ID (no sharp edges)
Made in the USA. 316 Stainless has the ULTIMATE corrosion resistance.