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Case hardened carbon steel with black oxide finish. Available in carbon steel or stainless steel.

5/16&quot; Precision Flat Washer - 3/4&quot; O.D. - 1/8&quot; Thick - Steel - Black Oxide - Pkg of 10 - FW-01

5-16-precision-flat-washer-3-4-o-d-1-8-thick-steel-black-oxide-pkg-of-10

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