9/16 USS Flat Washer Med Carbon Through Hardened Zinc CR+3 Domestic USA - Bulk (800) Hex Washer Head Self Drilling Screws Zinc Plated Engineered for professional use

Engineered for professional use

1-8 x 3 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (40)

Pre-drilling is recommended near board ends to prevent splitting

while the countersinking head creates a clean

9/16 USS Flat Washer Med Carbon Through Hardened Zinc CR+3 Domestic USA - Bulk (800) Hex Washer Head Self Drilling Screws Zinc Plated Engineered for professional use9 16 USS Flat Washer Med Carbon Through Hardened Zinc CR+3 Domestic USA Bulk (800), 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