S-93604A829 3/4"-10 x 16" 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 outdoor or humid environments
• Enhanced anti-rotation performance thanks to the integrated square neck design that prevents spinning during installation
• Reliable 60,000 psi tensile strength (Grade 2) ensures dependable performance in heavy-load applications
• Optimized thread engagement with UNC coarse threading and Class 2A fit for faster assembly and vibration resistance
• Versatile partial threading allows for both secure clamping and adjustable positioning in construction assemblies
• Wide rounded head profile provides superior load distribution and prevents pull-through in wooden structures
• Rockwell B70 hardness maintains structural integrity under mechanical stress and repeated loading

Professional Applications & Engineering Value

These hot-dipped galvanized steel carriage bolts deliver exceptional value in demanding construction and infrastructure projects where corrosion resistance and structural reliability are paramount. The square neck design fundamentally solves the common issue of bolt rotation during nut tightening, eliminating the need for secondary locking mechanisms in timber and steel frame assemblies. The UNC coarse threads provide superior engagement in softer materials while resisting vibration-induced loosening. With partial threading and substantial 16" length, these fasteners accommodate varying material thicknesses in bridge decks, heavy timber construction, and agricultural equipment. The Grade 2 classification combined with hot-dipped galvanization creates an optimal balance of strength and environmental protection, making them ideal for outdoor structures, marine applications, and industrial facilities exposed to moisture and chemical elements.

Specification Summary & Compliance

This 3/4"-10 x 16" carriage bolt features UNC coarse threading with Class 2A thread fit for standard commercial applications. Manufactured to exacting standards including ASTM A307 for chemical and mechanical requirements, ASTM A153 for zinc coating specifications, and ASME B18.5 for dimensional compliance. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring environmental responsibility and regulatory adherence for global industrial applications.