S-93604A675 3/8"-16 x 2" ASTM A307, ASTM A153, ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with hot-dipped galvanized steel coating for long-lasting performance in harsh environments
• Enhanced anti-rotation security through square neck design that prevents spinning during installation and use
• Reliable load-bearing capacity with Grade 2 strength rating and 60,000 psi tensile strength for structural applications
• Optimized thread engagement featuring UNC coarse threading with Class 2A fit for faster installation and secure fastening
• Exceptional surface durability with Rockwell B70 hardness that resists wear and deformation under stress
• Versatile fully-threaded design allowing for maximum adjustability and grip length in various material thicknesses
• Regulatory compliance assurance meeting industry standards for quality, safety, and environmental regulations

Professional Applications & Engineering Value

This hot-dipped galvanized steel carriage bolt delivers exceptional value in demanding structural and industrial applications where corrosion resistance and anti-rotation performance are critical. The square neck design effectively prevents bolt rotation during tightening and under vibration, eliminating the need for additional locking mechanisms and reducing installation time. The UNC coarse threading with Class 2A fit ensures reliable engagement in wood, metal, and composite materials, while the Grade 2 strength rating and 60,000 psi tensile strength provide dependable performance in structural connections, trailer assemblies, and heavy equipment. The hot-dipped galvanized coating offers superior protection against rust and corrosion in outdoor and high-moisture environments, making these carriage bolts ideal for construction, agricultural equipment, and marine applications where long-term reliability is essential.

Specification Summary & Compliance

This carriage bolt features precision 3/8"-16 UNC coarse threading with Class 2A thread fit for consistent performance and easy installation. Manufactured to exacting standards including ASTM A307 for carbon steel bolts, ASME B18.5 for dimensional requirements, and ASTM A153 for zinc coating specifications. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.