S-93604A733 1/2"-13 x 7" 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
• High tensile strength of 60,000 PSI with Grade 2 classification ensures reliable load-bearing capacity
• Optimized thread engagement with coarse UNC threading and Class 2A fit for faster assembly and secure fastening
• Durable material hardness at Rockwell B70 maintains structural integrity under repeated stress
• Versatile partial threading allows for both secure clamping and adjustment flexibility in various applications
• Regulatory compliance with RoHS 3 and REACH ensures safe, environmentally responsible manufacturing

Professional Applications & Engineering Value

These hot-dipped galvanized steel carriage bolts deliver exceptional engineering value in demanding industrial settings where corrosion resistance and vibration control are critical. The square neck design mechanically locks into materials to prevent rotation during torque application, solving common installation challenges in wood-to-metal and structural connections. The coarse UNC threading (1/2"-13) combined with partial threading provides optimal grip length for secure fastening while allowing for material compression adjustment. With 60,000 PSI tensile strength and Rockwell B70 hardness, these bolts maintain structural integrity in construction, agricultural equipment, and outdoor infrastructure applications where environmental exposure and dynamic loads are concerns. The hot-dipped galvanization creates a thick, bonded zinc coating that outperforms electroplated alternatives for long-term corrosion protection.

Specification Summary & Compliance

This 1/2"-13 x 7" carriage bolt features Class 2A thread fit per UNC coarse thread standards with minimum thread length of 6". Manufactured to ASTM A307 and ASME B18.5 specifications for dimensional accuracy and performance reliability. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring restricted substance-free manufacturing for global industrial applications.