S-93604A697 3/8"-16 x 7" ASTM A307, ASTM A153, ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with hot-dipped galvanized steel coating, ideal for outdoor and harsh industrial environments.
• Superior anti-rotation performance due to the integrated square neck design, preventing bolt spin during tightening and ensuring secure fastening.
• Reliable Grade 2 strength offering 60,000 PSI tensile strength and Rockwell B70 hardness for dependable load-bearing in medium-duty applications.
• Optimized thread engagement with partial threading and UNC coarse thread pattern, enabling faster installation and reduced cross-threading risk.
• Precise Class 2A thread fit ensuring smooth assembly and consistent performance with standard nuts and components.
• Broad compliance with industry standards including ASTM A307 and ASME B18.5, guaranteeing material quality and dimensional accuracy.
• Environmentally responsible manufacturing with RoHS 3 and REACH compliance, meeting global regulatory requirements for safe usage.

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 vibration resistance and longevity are critical. The square neck design effectively counters rotational forces, eliminating the need for additional locking washers and reducing installation time. With a 3/8"-16 UNC coarse thread and partial threading, it provides ample unthreaded shank for shear strength while facilitating quick alignment in wood-to-metal or timber applications. The Grade 2 strength classification and 60,000 PSI tensile strength ensure reliable performance under static and dynamic loads, making it a cost-effective solution for framing, trailer beds, and fencing systems exposed to environmental stressors.

Specification Summary & Compliance

This carriage bolt adheres to Class 2A thread fit tolerances and UNC coarse thread standards for consistent compatibility. It conforms to ASTM A307 for material properties and ASME B18.5 for dimensional specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from restricted hazardous substances and safe for industrial use worldwide.