Up for sale is a high-quality bulk lot of vintage ASTM A325 heavy hex structural bolts manufactured by TNS. Known for exceptional tensile strength and reliability, these high-strength steel fasteners are engineered specifically for heavy-duty structural steel connections, framing, and machinery anchoring.

All bolts in this lot are in clean, unused vintage condition with crisp threads and solid heads, ready to go to work on your next construction, industrial, or heavy workshop project.

Product Details:
Type: Heavy Hex Structural Bolts

Specification: ASTM A325 (High Strength)

Manufacturer Mark: TNS

Length: 3 inches

Finish: Plain / Black Oxide

Condition: Excellent, unused vintage stock. Threads are clean, sharp, and structurally sound with minimal surface storage wear.