S-92356A554 1/4"-20 x 3" 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 integrated square neck, preventing bolt spin during installation and use
• Wide, rounded carriage head with 0.594" diameter for enhanced bearing surface and reduced risk of pull-through
• Optimized thread engagement with UNC coarse 1/4"-20 threading and Class 2A fit for quick assembly and vibration resistance
• Full 3-inch threading offers maximum fastening flexibility and adjustability across various material thicknesses
• Regulatory compliance assurance meeting ASME B18.5 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

This 18-8 stainless steel carriage bolt delivers critical engineering solutions for industrial applications where corrosion resistance and structural integrity are paramount. The square neck design effectively counters rotational forces in wood-to-metal and structural connections, eliminating the need for additional locking washers or tools. With its UNC coarse threading and Class 2A thread fit, installation is streamlined while maintaining secure fastening in vibrating environments. The combination of 70,000 psi tensile strength and corrosion-resistant properties makes it ideal for construction, agricultural equipment, marine applications, and infrastructure projects where durability and long-term performance are essential.

Specification Summary & Compliance

This carriage bolt features precision 1/4"-20 UNC coarse threads with Class 2A thread fit tolerances, ensuring consistent performance and interchangeability. Manufactured in compliance with ASME B18.5 standards for dimensional accuracy and mechanical properties. The product is certified RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting current environmental regulations for hazardous substances. All specifications including head diameter (0.594"), length (3"), and square neck dimensions (0.16" length, 0.26" width) conform to established industrial standards.