S-92356A548 1/4"-20 x 1 3/4" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for humid or chemically aggressive environments
• Exceptional anti-rotation performance due to the integrated square neck design that prevents spinning during installation and use
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity in demanding structural applications
• Wide rounded head profile distributes clamping force evenly, minimizing surface damage and enhancing joint integrity
• Coarse UNC threading allows for faster installation and reduced cross-threading risk in wood and soft materials
• Class 2A thread fit provides consistent engagement and reliable fastening without excessive tightening torque
• Full compliance with ASME B18.5 and environmental regulations (RoHS 3 & REACH) for guaranteed quality and safety

Professional Applications & Engineering Value

This 18-8 stainless steel carriage bolt is engineered to address common industrial fastening challenges, including vibration-induced loosening and corrosion-related failures. The square neck securely locks into pre-drilled materials, eliminating rotation during assembly—critical for wood-to-metal connections in construction, agricultural equipment, and transportation infrastructure. Its coarse UNC threading ensures rapid installation in timber and composite substrates, while the fully threaded design accommodates variable material thicknesses. With a Rockwell B55 hardness and robust 70,000 psi tensile strength, it withstands dynamic loads and harsh outdoor conditions, making it a reliable choice for heavy-duty structural frameworks, trailer beds, and machinery guards where long-term reliability is non-negotiable.

Specification Summary & Compliance

This carriage bolt adheres to ASME B18.5 dimensional standards with a 1/4"-20 UNC coarse thread and Class 2A thread fit for consistent precision. The 1 3/4" length and 0.594" head diameter ensure proper engagement and clamping. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally regulated industrial and commercial applications.