Precision-Made Washers: Our EXTSW washers are meticulously crafted with a 5/8” inner diameter, 1” outer diameter, and a thickness of 5/16”.

Exact Dimensions: Actual size is .632” ID x .990” OD x .313” thick, with a tolerance of +/- .003 on all dimensions.

Smooth Edges: The outer diameter features a .030 inch radius, and the inner diameter is countersunk to eliminate sharp edges.

Made in USA: Proudly manufactured in the United States using state-of-the-art CNC lathe technology.

Perfect Fit for Bolts: These washers are an ideal fit for your 5/8” stainless steel bolts.

Customizable Options: If you require a custom size washer, please reach out to us for personalized service.

Corrosion Resistance: Made from 316 Stainless Alloy, these washers offer ultimate corrosion resistance and are weldable.

About Grade 316 Alloy: Grade 316 is the industry standard molybdenum-bearing stainless steel, known for its superior properties over other alloys like 18-8, 303, and 304.