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

High‑strength 1/2"-13 x 2‑1/2" 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 dependable durability. Features partial coarse threading (PT) for improved shear strength and secure load engagement, paired with a heavy hex head designed to provide increased wrenching area and superior load distribution. Ideal for construction, structural applications, equipment assembly, anchoring, and projects requiring reliable, high‑strength hardware with added corrosion protection.