S-93604A802 3/4"-10 x 8" 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 extended service life in harsh environments
• Reliable anti-rotation performance thanks to the integrated square neck design that prevents spinning during installation
• Heavy-duty load capacity with Grade 2 classification and 60,000 psi tensile strength for demanding applications
• Optimized thread engagement through UNC coarse threading and Class 2A fit ensuring secure fastening
• Enhanced installation efficiency with partially threaded design allowing for quicker assembly in wood and metal applications
• Exceptional surface durability with Rockwell B70 hardness maintaining structural integrity under stress
• Industry-standard compliance meeting ASTM A307, ASTM A153, and ASME B18.5 specifications for guaranteed quality

Professional Applications & Engineering Value

This hot-dipped galvanized steel carriage bolt delivers critical engineering solutions for industrial and construction applications where corrosion resistance and anti-rotation performance are paramount. The rounded head with wide profile distributes load evenly while the square neck securely locks into materials, eliminating rotation during torque application. The 3/4"-10 UNC coarse thread provides superior pull-out resistance in wood and soft materials, while the partial threading allows unthreaded shank sections to bear shear loads effectively. Engineered with Grade 2 strength classification and 60,000 psi tensile strength, this heavy-duty fastener withstands substantial structural demands in framing, machinery assembly, and outdoor infrastructure projects where environmental exposure requires durable galvanized protection.

Specification Summary & Compliance

This carriage bolt maintains precise Class 2A thread fit with UNC coarse threading (3/4"-10) and right-hand thread direction. Manufacturing complies with ASTM A307 for carbon steel bolts, ASTM A153 for zinc coating (hot-dip), and dimensional standards per ASME B18.5. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial distribution and use.