S-90185A269 3/4"-10 x 6 1/2" ASME B18.5, SAE J429 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in harsh industrial environments
• Exceptional load-bearing capacity with 120,000 psi tensile strength and Grade 5 classification for heavy-duty applications
• Reliable anti-rotation performance through integrated square neck design that prevents spinning during installation
• Optimized thread engagement with UNC coarse spacing and Class 3A fit for faster assembly and vibration resistance
• Enhanced durability with Rockwell C25 hardness rating maintaining structural integrity under repeated stress
• Full-threaded convenience allowing flexible positioning and secure fastening throughout the entire 6½" length
• Regulatory compliance assurance meeting ASME B18.5, RoHS 3, and REACH standards for global industrial acceptance

Professional Applications & Engineering Value

These Grade 5 carriage bolts deliver critical engineering solutions where vibration resistance and structural integrity are paramount. The zinc-plated steel construction provides essential corrosion protection for outdoor equipment, agricultural machinery, and construction applications exposed to environmental elements. The square neck design effectively eliminates rotation during torque application, making them ideal for wood-to-metal connections in trailer manufacturing, structural framing, and heavy equipment assembly. With UNC coarse threading and Class 3A thread fit, these fasteners ensure rapid installation while maintaining secure connections in high-vibration environments. The fully threaded 6½" length offers installation flexibility across varying material thicknesses, while the 120,000 psi tensile strength guarantees performance in load-critical applications.

Specification Summary & Compliance

This carriage bolt features precision 3/4"-10 UNC coarse threading with Class 3A fit for superior thread engagement and dimensional accuracy. Manufactured to ASME B18.5 specifications with Grade 5 classification, ensuring consistent quality and performance. The product maintains full compliance with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards, confirming environmental responsibility and chemical safety for industrial use worldwide.