S-92356A638 3/8"-16 x 3 1/2" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and outdoor applications
• Exceptional load-bearing capacity thanks to 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under stress
• Secure anti-rotation locking provided by the integrated square neck, preventing spin-out during installation and vibration
• Broad compatibility and easy installation with UNC coarse threading (3/8"-16) and Class 2A thread fit for standard tools
• Full-length thread engagement ensures maximum grip and adjustment flexibility across the entire 3-1/2" length
• Wide, rounded head profile distributes clamping force evenly and reduces surface damage
• Regulatory peace of mind with compliance to ASME B18.5, RoHS 3, and REACH standards

Professional Applications & Engineering Value

This 3/8"-16 UNC Carriage Bolt delivers critical engineering value in demanding industrial settings where vibration resistance and material integrity are paramount. The 18-8 Stainless Steel composition provides excellent resistance to rust and corrosion, making it suitable for construction, agricultural machinery, marine hardware, and infrastructure projects exposed to moisture. The square neck design is engineered to lock securely into wood or metal, preventing the bolt from turning during nut tightening—solving common assembly headaches. Combined with fully threaded coarse UNC threading and Class 2A thread fit, it ensures quick installation and reliable performance in heavy-duty fastening applications, reducing maintenance and replacement cycles.

Specification Summary & Compliance

This carriage bolt features a 3/8"-16 UNC coarse thread with Class 2A thread fit for standard tolerance and compatibility. It is manufactured in accordance with ASME B18.5 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it meets stringent industry and safety standards for global industrial use.