S-92356A122 5/16"-18 x 7" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for heavy-duty applications
• Reliable anti-rotation performance due to the integrated square neck that prevents spinning during installation
• Optimized thread engagement with coarse UNC threading and Class 2A fit ensuring quick assembly and secure fastening
• Enhanced durability with a wide, rounded carriage head that distributes load effectively and resists pull-through
• Regulatory compliance meeting ASME B18.5 specifications, RoHS 3, and REACH standards for safe, quality-assured use
• Versatile partial threading allowing flexibility in clamping various material thicknesses while maintaining structural integrity

Professional Applications & Engineering Value

This 5/16"-18 UNC carriage bolt delivers critical engineering solutions where vibration resistance and long-term reliability are paramount. The 18-8 stainless steel material provides excellent corrosion resistance, making it suitable for outdoor, marine, and chemical-exposed settings. The square neck design securely locks into materials, preventing rotation during torque application and eliminating the need for secondary locking mechanisms. With partial threading and coarse UNC threads, it offers rapid installation in wood, metal, and composite assemblies, while the Class 2A thread fit ensures consistent performance without cross-threading risks. These features make it an indispensable heavy-duty fastener for construction, transportation, and machinery applications demanding unwavering fastening security.

Specification Summary & Compliance

This carriage bolt adheres to precise dimensional standards, including a Class 2A thread fit for reliable interchangeability and a 5/16"-18 UNC coarse thread profile. It is manufactured in compliance with ASME B18.5 specifications, ensuring consistent quality and performance. The product is also verified as RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming its adherence to environmental and safety regulations for hazardous substances.