1/2"-13 x 2‑1/4" Heavy Hex Cap Screw – A307 Grade B, Coarse Thread (PT), Zinc CR+3 (U.S.A.)

Durable 1/2"-13 x 2‑1/4" 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 dependable outdoor performance. Features partial coarse threading (PT) for increased shear strength and secure load engagement, along with a heavy hex head offering greater wrenching area and superior load distribution. Ideal for construction, structural connections, equipment assembly, and industrial applications requiring reliable, high‑strength, zinc‑plated hardware.