Slightly different than carriage bolts

7/16-20 x 3 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (225)

Hot-Dip Galvanized material will meet or exceed ASTM A153

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tensile strength rating

1/2 USS Flat Washer Med Carbon Through Hardened Zinc CR+3 Domestic USA - Bulk (1000) Titen HD® Countersunk Head Style Heavy-Duty Screw Anchor Zinc Plated Slightly different than carriage bolts1 2 USS Flat Washer Med Carbon Through Hardened Zinc CR+3 Domestic USA Bulk (1000), domestically manufactured in the USA, are constructed from medium carbon steel that is through hardened to meet the high mechanical requirements of Grade 8 and structural fastening applications, supporting joints with a minimum tensile strength of 180,000 PSI. Dimensions conform to ASME B18. 21. 1, Type A, Wide Series standards, which feature an oversized outside