• High-Strength Steel: Manufactured from Grade 8 steel for superior strength and durability in high-stress applications. • SAE J429 Certified: Meets the stringent requirements of the Society of Automotive Engineers J429 specification for high-quality fasteners. • Dimensions: Features a 5/8 inch diameter with a coarse thread pitch of 11 threads per inch and a length of 7-1/2 inches. • Zinc Yellow Coating: A yellow chromate coating over zinc plating provides excellent corrosion and rust resistance. • Washer Face: Includes a washer face under the head to provide a smooth bearing surface and distribute the clamping load.