EXTSW 1/4” ID x (1/2” / .490") x 3/16” thick 316 Stainless Washer

EXTSW 1/4” ID x 1/2” x 3/16” Long 316 Alloy Stainless Spacers

Actual size .256” ID x .490” OD x .188” Long

(+/- .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 1/4 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.