S-93548A720 1/2"-13 x 2" ASTM A307, SAE J429, ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Exceptional anti-rotation performance through integrated square neck design that prevents spinning during installation
• High tensile strength rating of 60,000 PSI ensures reliable performance under heavy loads and stress conditions
• Optimized coarse thread design (UNC 1/2"-13) provides faster installation and superior holding power in various materials
• Precision Class 2A thread fit guarantees consistent engagement and reliable fastening performance
• Wide rounded head profile offers enhanced bearing surface for improved load distribution
• Full thread coverage along the 2" length provides maximum flexibility in material thickness applications

Professional Applications & Engineering Value

This zinc-plated steel carriage bolt delivers exceptional engineering value through its square neck design that effectively prevents rotation during tightening, eliminating the need for additional locking mechanisms. The Grade 2 strength classification with 60,000 PSI tensile strength and Rockwell B70 hardness ensures reliable performance in structural applications, wood-to-metal connections, and heavy equipment assembly. The UNC coarse thread pattern provides superior pull-out resistance in wood, plastic, and softer materials, while the zinc plating offers essential corrosion protection for both indoor and outdoor industrial environments. These carriage bolts are engineered to solve common fastening challenges in construction, agricultural equipment, trailer manufacturing, and structural framing applications where vibration resistance and secure fastening are critical.

Specification Summary & Compliance

This carriage bolt features precision Class 2A thread fit with UNC 1/2"-13 coarse threading and right-hand thread direction. Manufactured to meet ASTM A307, SAE J429, and ASME B18.5 specifications, ensuring consistent quality and dimensional accuracy. The product is RoHS 3 (2015/863/EU) Compliant and features a square neck measuring 0.28" in length and 0.52" in width, with a rounded head diameter of 1.094" and overall length of 2".