S-92356A121 5/8"-11 x 1 3/4" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh or outdoor environments.
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for reliable, heavy-duty load-bearing.
• Secure anti-rotation locking provided by the integrated square neck, preventing the bolt from spinning during nut tightening.
• Wide, rounded head design distributes clamping force effectively and reduces surface damage.
• Easy and quick installation with coarse UNC threading and fully threaded shank for consistent engagement.
• Precision manufacturing with Class 2A thread fit ensures consistent quality and reliable assembly.
• Compliance with major industry standards including ASME B18.5, RoHS 3, and REACH for guaranteed safety and quality.

Professional Applications & Engineering Value

This 5/8"-11 UNC Carriage Bolt is engineered to solve critical fastening challenges in demanding industrial applications. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, making it suitable for construction, agricultural machinery, marine hardware, and infrastructure projects exposed to the elements. The square neck is a key engineering feature that locks securely into the mating material, preventing rotation during assembly and ensuring a stable, vibration-resistant connection. Combined with its coarse threading and fully threaded design, it allows for faster installation and robust performance in wood, metal, and other structural materials, delivering long-term reliability and reducing maintenance needs.

Specification Summary & Compliance

This carriage bolt features a 5/8"-11 UNC thread with Class 2A fit and coarse spacing, a 1 3/4" length, and a 0.34" square neck. It is manufactured in compliance with ASME B18.5 standards and is certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant.