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Introducing our high-quality 5/16 Screw Standard Flat Washer made from durable case hardened steel with a black oxide finish! Designed to provide superior performance in various industrial applications, this washer features an 11/32 inside diameter, 3/4 outside diameter, and 1/8 thickness. Its 5/16 screw size ensures easy installation, while its system of measurement is conveniently provided in inches for user-friendliness. This versatile washer can be utilized in numerous applications where a flat washer is needed, including machinery, automotive, and construction. Order yours today and experience the superior performance and reliability that only Gibraltar can provide!