S-93604A763 5/8"-11 x 4 1/2" ASTM A307, ASTM A153, ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with hot-dipped galvanized steel coating, extending service life in harsh outdoor and industrial environments
• Reliable anti-rotation performance through square neck design that prevents spinning during installation and maintains secure positioning
• Heavy-duty load capacity with Grade 2 strength rating and 60,000 psi tensile strength for demanding construction applications
• Easy installation and removal with coarse UNC threading and Class 2A thread fit providing smooth engagement and disengagement
• Enhanced durability with Rockwell B70 hardness offering excellent resistance to deformation under pressure
• Full-threaded design ensures maximum grip length and versatile application across various material thicknesses
• Comprehensive compliance with major industry standards including ASTM A307, ASTM A153, and ASME B18.5 for guaranteed quality and performance

Professional Applications & Engineering Value

This hot-dipped galvanized steel carriage bolt delivers exceptional engineering value in demanding industrial and construction environments. The square neck design provides critical anti-rotation capability, preventing the bolt from turning during nut tightening - a common challenge in structural assemblies and wood-to-metal connections. The heavy-duty Grade 2 classification with 60,000 psi tensile strength ensures reliable performance in load-bearing applications such as structural framing, heavy equipment assembly, and infrastructure projects. The hot-dipped galvanized coating offers superior protection against corrosion and weathering, making it ideal for outdoor construction, marine environments, and industrial settings where moisture and chemical exposure are concerns. The coarse UNC threading with Class 2A fit provides excellent engagement in various materials while maintaining installation efficiency.

Specification Summary & Compliance

This 5/8"-11 carriage bolt features precise Class 2A thread fit with UNC coarse threading and right-hand thread direction. Manufactured to exacting standards including ASTM A307 for carbon steel bolts, ASTM A153 for zinc coating (hot-dip), and ASME B18.5 for dimensional requirements. The product is RoHS 3 (2015/863/EU) compliant, ensuring environmental responsibility while meeting rigorous industrial fastener specifications for quality and performance consistency.