EXTSW 5/16” ID x 7/8” OD x 3/8” thick 316 alloy stainless washers
Actual size .319 ID x .865” 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 5/16” 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.