S-92356A814 5/8"-11 x 5" 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 installation thanks to the integrated square neck that prevents spinning during tightening
• Wide load distribution from the 1.344" rounded head design, minimizing surface damage and pull-through
• Optimized thread engagement with UNC coarse threading and Class 2A fit for faster assembly and vibration resistance
• Versatile partial threading allowing unthreaded shank sections to bear shear loads effectively
• Full regulatory compliance meeting ASME B18.5 standards and environmental regulations (RoHS 3, REACH)

Professional Applications & Engineering Value

This 5/8"-11 UNC carriage bolt delivers critical engineering solutions for industrial applications where corrosion resistance and structural integrity are paramount. The 18-8 Stainless Steel composition provides excellent protection against rust and chemical exposure in marine, construction, and food processing environments. The square neck design eliminates the need for separate locking washers or tools by positively engaging with mounting surfaces, preventing rotation during torque application. With its partially threaded configuration and coarse UNC threading, this bolt offers superior resistance to vibration loosening while allowing the unthreaded portion to serve as a precision-guided shear plane. The combination of 70,000 psi tensile strength and Rockwell B55 hardness ensures reliable performance in structural connections, trailer assemblies, and heavy equipment where dynamic loads and stress are constant concerns.

Specification Summary & Compliance

This carriage bolt features precision 5/8"-11 UNC coarse threading with Class 2A thread fit tolerance for consistent engagement. Manufacturing conforms to ASME B18.5 dimensional standards, ensuring interchangeability and proper function. The product is fully compliant with RoHS 3 (2015/863/EU) restrictions on hazardous substances and REACH (EC 1907/2006) regulations for chemical safety. Critical dimensions include: 5" length, 1.344" head diameter, 0.34" square neck length, and minimum 1" thread length.