S-92356A145 5/16"-18 x 3 3/4" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to 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, ensuring reliable performance under heavy loads.
• Secure anti-rotation installation provided by the integrated square neck, preventing the bolt from turning during tightening.
• Broad compatibility and easy assembly with UNC coarse threading and Class 2A thread fit, facilitating quick and reliable fastening.
• Full thread engagement along the entire 3 3/4" length, offering maximum grip and adjustability in various material thicknesses.
• Regulatory compliance assurance by meeting ASME B18.5 standards and being RoHS 3 and REACH compliant for safe, global industrial use.
• Durable, wide rounded head design for increased bearing surface and reduced risk of pull-through in wood and metal assemblies.

Professional Applications & Engineering Value

This 5/16"-18 UNC carriage bolt is engineered to address critical challenges in industrial fastening, particularly where vibration resistance, corrosion, and structural integrity are paramount. The 18-8 stainless steel material provides excellent resistance to rust and oxidation, making it suitable for marine, construction, and chemical processing environments. Its fully threaded design with coarse UNC threading ensures rapid installation and high pull-out strength in wood, composite, and soft metal applications. The square neck securely locks into the material during installation, eliminating spin-out and reducing assembly time. With a 70,000 psi tensile strength and compliance with ASME B18.5, this bolt delivers consistent performance in heavy machinery, trailer manufacturing, and structural frameworks, ensuring long-term reliability and safety.

Specification Summary & Compliance

This carriage bolt features precise Class 2A thread fit and adheres to UNC coarse thread standards for consistent engagement. Manufactured in accordance with ASME B18.5 specifications, it guarantees dimensional accuracy and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for use in various industrial and consumer applications globally.