S-93548A669 7/16"-14 x 1" ASTM A307, SAE J429, ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh environments
• Secure anti-rotation locking thanks to the integrated square neck that prevents spinning during installation
• High tensile strength performance with Grade 2 classification and 60,000 PSI capacity for demanding applications
• Excellent thread engagement through UNC coarse threading with Class 2A fit for reliable fastening
• Optimized load distribution from the wide rounded head profile that minimizes surface damage
• Enhanced installation efficiency with fully threaded design allowing full-length engagement
• Consistent hardness properties with Rockwell B70 rating ensuring dimensional stability under stress

Professional Applications & Engineering Value

This 7/16"-14 carriage bolt delivers exceptional engineering value in heavy-duty industrial applications where vibration resistance and structural integrity are paramount. The zinc-plated steel construction provides essential corrosion protection for outdoor equipment, agricultural machinery, and construction assemblies. The square neck design solves critical installation challenges by preventing rotation during tightening, eliminating the need for secondary locking mechanisms. With UNC coarse threading and Class 2A thread fit, this fastener ensures rapid assembly while maintaining precise tolerances. The combination of 60,000 PSI tensile strength and Rockwell B70 hardness makes it ideal for structural connections, trailer manufacturing, and wood-to-metal applications where durable fastening solutions are essential for long-term performance.

Specification Summary & Compliance

This carriage bolt maintains Class 2A thread tolerances with UNC coarse thread spacing (7/16"-14) and right-hand threading direction. Manufacturing compliance includes ASTM A307, SAE J429 Grade 2, and ASME B18.5 specifications. The product is RoHS 3 (2015/863/EU) Compliant for environmental regulations, ensuring safe use across various industrial sectors while meeting international fastener standards for quality and performance consistency.