S-93604A693 3/8"-16 x 6" ASTM A307, ASTM A153, ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with hot-dipped galvanized steel coating, ideal for outdoor or high-moisture industrial environments.
• Enhanced anti-rotation performance due to the integrated square neck design, preventing bolt spin during installation and ensuring secure fastening.
• Reliable strength for medium-duty applications with Grade 2 classification and 60,000 psi tensile strength, offering dependable load-bearing capacity.
• Easy installation and removal with fully threaded UNC coarse threading and right-hand direction, compatible with standard tools and reducing assembly time.
• Consistent dimensional accuracy with Class 2A thread fit, ensuring smooth engagement with nuts and minimizing cross-threading risks.
• Durable mechanical properties featuring Rockwell B70 hardness, providing resistance to wear and deformation under stress.
• Broad compliance with industry standards, including ASTM A307 and ASME B18.5, ensuring quality and interoperability in various setups.

Professional Applications & Engineering Value

This hot-dipped galvanized steel carriage bolt is engineered to address common challenges in construction, agricultural machinery, and structural assemblies where exposure to harsh elements can lead to premature failure. The square neck design locks securely into materials, eliminating rotation during tightening and providing stable connections in wood-to-metal or timber framing applications. With full UNC coarse threading and Grade 2 strength, it delivers consistent performance in fastening tasks requiring moderate tensile loads, such as trailer hitches or fencing systems. The galvanized surface offers long-lasting protection against rust, reducing maintenance costs and extending service life in outdoor or humid industrial settings, while the 60,000 psi tensile strength ensures reliability under dynamic stresses.

Specification Summary & Compliance

This carriage bolt maintains precise dimensions, including a 3/8"-16 UNC coarse thread with Class 2A fit for accurate nut engagement. It conforms to manufacturing specifications under ASTM A307 and ASME B18.5, and meets regulatory requirements including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and material integrity.