S-92356A142 1/4"-20 x 4 3/4" 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 long-term outdoor use.
• Enhanced anti-rotation security thanks to the square neck design that locks securely into materials, preventing spin-out during tightening.
• High-strength performance with 70,000 psi tensile strength and Rockwell B55 hardness for reliable load-bearing in demanding applications.
• Easy, quick installation with a fully threaded UNC coarse thread design and Class 2A fit, ensuring smooth engagement and reduced assembly time.
• Wide, rounded head profile provides a larger bearing surface for improved load distribution and a finished appearance.
• Compliance with major industry standards including ASME B18.5, RoHS 3, and REACH, guaranteeing quality and environmental safety.
• Versatile coarse threading (1/4"-20 UNC) offers excellent grip and is less prone to cross-threading in wood and metal assemblies.

Professional Applications & Engineering Value

This 18-8 stainless steel carriage bolt is engineered to address common industrial fastening challenges, such as vibration loosening and material degradation. The square neck integrates seamlessly into pre-drilled holes, creating a firm, non-rotational lock that eliminates the need for secondary locking mechanisms. Its fully threaded UNC coarse thread design ensures maximum thread engagement across the entire 4-3/4" length, providing superior pull-out resistance in wood, metal framing, and structural connections. The corrosion-resistant properties make it suitable for outdoor equipment, marine applications, and facilities exposed to moisture or chemicals, reducing maintenance frequency and replacement costs. By combining high tensile strength with precise Class 2A thread fit, this bolt delivers consistent performance in heavy-duty assemblies, from construction and machinery to transportation and agricultural equipment.

Specification Summary & Compliance

This carriage bolt features a 1/4"-20 UNC coarse thread with a Class 2A thread fit for standard tolerance and reliable engagement. It is manufactured in compliance with ASME B18.5 specifications, ensuring dimensional accuracy and interchangeability. The product also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, confirming it is free of hazardous substances and safe for use in various markets.