S-93604A769 5/8"-11 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 long-lasting performance in outdoor and harsh environments
• Exceptional tensile strength of 60,000 psi (Grade 2) ensures reliable load-bearing capacity in demanding structural applications
• Anti-rotation security provided by the square neck design, preventing bolt spinning during installation and maintaining joint integrity
• Easy installation and removal with coarse UNC threading and right-hand thread direction, compatible with standard industrial tools
• Wide rounded head profile distributes clamping force effectively, reducing surface damage and improving fastener stability
• Precision thread fit (Class 2A) ensures smooth engagement and consistent performance across mating components
• Comprehensive regulatory compliance with RoHS 3 and REACH standards for safe use in regulated industries and global markets

Professional Applications & Engineering Value

This hot-dipped galvanized steel carriage bolt delivers critical engineering solutions where corrosion resistance and structural integrity are paramount. The Grade 2 strength rating combined with 60,000 psi tensile strength makes it ideal for heavy-duty construction, agricultural equipment, and infrastructure projects exposed to environmental stress. The square neck design effectively prevents rotation during torque application, eliminating the need for secondary locking mechanisms and reducing installation time. With partial threading and coarse UNC threads, it maintains superior grip in wood-to-metal and structural steel connections, while the wide rounded head provides enhanced bearing surface to prevent pull-through in soft materials. These features collectively address common failure points in industrial fastening, ensuring long-term reliability in demanding applications.

Specification Summary & Compliance

This carriage bolt maintains Class 2A thread fit tolerance with 5/8"-11 UNC coarse threading and 6-inch minimum thread length. Manufactured to ASTM A307 and ASME B18.5 specifications, it guarantees dimensional consistency and mechanical performance. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and unrestricted use in international markets.