5/8-11X3 Coarse Thread Hex Cap Screw Grade 9 DFAR EcoGuard Gray/Silver 1,000 Hr Corrosion (Pack Qty 100) BC-6248CH9

Has greater tensile strength than a Grade-8. Designed for use in heavy machinery and equipment subject to harsh environmental and fatigue conditions AISI 8637 / 8640 / 8740 Medium Carbon Alloy Steel wire or 4340 Alloy Steel bar stockYou may also like 1/4-20X3/8 Unslotted Indented Hex Washer Thread Cutting Screw Type 1 Fully Threaded Zinc An (Pack Qty 3,000) BC-14061W.