1 1/4" USA F436 Structural Flat Washers – Zinc CR+3 (Inch)

Strengthen your structural fastening systems with heavy‑duty 1 1/4" USA‑made F436 structural flat washers. Built to strict ASTM F436 standards, these washers deliver reliable load distribution for high‑strength bolts used in construction, steel fabrication, and critical infrastructure projects. The Zinc CR+3 corrosion‑resistant finish provides long‑lasting protection against rust and wear, ensuring dependable performance in demanding outdoor and industrial environments.