Specification Brand : EXTSW ItemName : (1 pc) EXTSW 7/16” ID x 7/8” OD x 3” Thick 316 Stainless Spacer ItemPackageQuantity : 1 ItemTypeKeyword : hardware-spacers Manufacturer : EXTSW Material : Stainless Steel MetalType : Alloy Steel NumberOfItems : 1 NumberOfPieces : 1 PartNumber : 437-875-3000-316 ProductDescription : (1 pc) EXTSW 7/16” ID x 7/8” x 3” Long 316 Alloy Stainless Spacer Actual size .440” ID x .865” OD x 3.000” 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 7/16" Stainless shafts and all-thread. 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. ProductSiteLaunchDate : 2020-06-04T07:00:00.000Z UnitCount : 1 UnspscCode : 31161807 WasherType : Flat