S-93548A708 1/2"-13 x 1" 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 thanks to the integrated square neck that prevents spinning during installation
• High tensile strength rating of 60,000 PSI (Grade 2) ensures reliable performance in heavy-duty applications
• Wide rounded head design provides superior load distribution and reduces surface damage
• Coarse UNC threading enables faster installation and better performance in softer materials
• Precision Class 2A thread fit guarantees consistent engagement and reliable fastening performance
• Full threading capability allows for maximum adjustability and secure fastening across the entire length

Professional Applications & Engineering Value

These Grade 2 zinc-plated steel carriage bolts deliver exceptional engineering value through their robust construction and specialized design features. The square neck carriage bolt configuration provides critical anti-rotation properties, making them ideal for wood-to-metal connections, structural framing, and heavy equipment assembly where vibration resistance is paramount. The zinc-plated steel material offers substantial corrosion protection, extending service life in industrial environments while maintaining the 60,000 PSI tensile strength required for demanding applications. The coarse UNC threading ensures reliable performance in softer materials like wood and composite structures, while the wide rounded head distributes clamping force effectively to prevent surface damage. These fully threaded carriage bolts are engineered to solve common fastening challenges in construction, agricultural equipment, and transportation applications where both strength and anti-loosening capabilities are essential.

Specification Summary & Compliance

This 1/2"-13 carriage bolt features precision Class 2A thread fit with coarse UNC threading and right-hand thread direction. Manufactured to exacting standards including ASTM A307, SAE J429, and ASME B18.5 specifications, ensuring dimensional accuracy and performance reliability. The product demonstrates full compliance with environmental regulations including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, meeting current industry requirements for sustainable manufacturing practices.