1‑1/4"-7 x 5‑1/2" Heavy Hex Cap Screw – A307 Grade B, Coarse Thread (PT), Zinc CR+3 (U.S.A.)

Heavy‑duty 1‑1/4"-7 x 5‑1/2" A307 Grade B heavy hex cap screw, manufactured in the U.S.A. and finished with a Zinc CR+3 coating for enhanced corrosion resistance and long‑lasting durability in demanding construction and industrial environments. Features partial coarse threading (PT) for increased shear strength and secure load engagement, paired with a heavy hex head that provides expanded wrenching area and superior load distribution. Ideal for structural connections, heavy equipment installation, anchoring applications, industrial assemblies, and any use requiring strong, reliable hardware with additional corrosion protection.