S-92356A652 3/8"-16 x 8" 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 mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for reliable performance under heavy loads
• Secure anti-rotation locking provided by the square neck design, preventing bolt spin during installation and vibration
• Optimized load distribution from the wide rounded carriage head, minimizing surface damage and pull-through
• Easy installation and removal with UNC coarse threading and Class 2A thread fit for smooth engagement
• Versatile partial threading allowing unthreaded shank to bear shear loads while threaded portion secures fastening
• Full regulatory compliance meeting ASME B18.5 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

This 3/8"-16 UNC carriage bolt delivers critical engineering solutions for industrial applications where vibration resistance and structural integrity are paramount. The 18-8 Stainless Steel composition provides excellent corrosion resistance, making it suitable for outdoor structures, marine environments, and food processing facilities. The square neck design effectively prevents rotation during torque application, eliminating the need for secondary locking mechanisms in wood-to-metal and structural steel connections. With partial threading and coarse UNC threads, this fastener maintains superior clamp force in soft materials while the unthreaded shank bears shear loads in timber, construction, and heavy equipment applications. The combination of 70,000 psi tensile strength and Rockwell B55 hardness ensures reliable performance in demanding mechanical assemblies and structural frameworks.

Specification Summary & Compliance

This carriage bolt features precision Class 2A thread fit with 3/8"-16 UNC coarse threading and right-hand thread direction. Manufacturing complies with ASME B18.5 standards for dimensional accuracy and quality assurance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. Critical dimensions include 8" length, 0.844" head diameter, 0.39" square neck width, and minimum 1" thread length for consistent performance.