EXTSW 9/16" ID x (1" .990") OD x 3/8" Thick 316 Stainless Spacer

EXTSW  9/16" ID x 1" OD x 3/8" Thick 316 Alloy Stainless Washers

Actual size .573" ID x .990" OD x .375" Thick

(+/- .003" on all dimensions)

.030 inch Radius OD / Countersunk ID (no sharp edges)

Made in USA on a CNC lathe

It is a beautiful fit for your 9/16” Stainless bolts

Just contact me if you need a custom size washer.


316 Grade Alloy Stainless contain a higher percentage of nickel than 304SS. The resultant composition gives a much improved corrosion resistance in many aggressive environments. The molybdenum addition ensures more resistance to pitting and crevice corrosion in chloride-containing media, sea water and chemical environments such as sulfuric acid compounds, phosphoric and acetic acids. The lower rate of general corrosion in mildly corrosive environments gives 316 SS a good atmospheric corrosion resistance in polluted marine atmospheres.

316 SS offers good strength and creep resistance and also possesses excellent mechanical and corrosion-resistant properties at sub-zero temperatures.