S-93180A225 1/4"-20 x 1 1/4" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 Stainless Steel construction, ideal for harsh environments and outdoor applications
• Enhanced anti-rotation performance thanks to the integrated square neck design that prevents spinning during installation
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity for demanding industrial applications
• Excellent durability with Rockwell B55 hardness that maintains structural integrity under stress
• Secure fastening in wood and metal with fully threaded UNC coarse spacing for quick installation and strong holding power
• Wide rounded head design provides larger bearing surface for improved load distribution and reduced surface damage
• Full regulatory compliance meets ASME B18.5 standards and environmental regulations including RoHS 3 and REACH

Professional Applications & Engineering Value

Our 1/4"-20 UNC carriage bolts in 316 Stainless Steel deliver exceptional engineering value for industrial applications where corrosion resistance and structural integrity are paramount. The combination of fully threaded coarse spacing and square neck design solves critical installation challenges by preventing rotation during tightening, eliminating the need for secondary locking mechanisms. This carriage bolt configuration is particularly valuable in wood-to-metal connections, structural framing, and heavy equipment assembly where vibration resistance is essential. The rounded head profile with wide bearing surface distributes clamping force effectively, preventing surface damage while maintaining secure fastening in demanding environments including marine, chemical processing, and outdoor infrastructure applications.

Specification Summary & Compliance

This carriage bolt features precise Class 2A thread fit with UNC coarse thread spacing (1/4"-20) and right-hand threading direction. Manufacturing complies with ASME B18.5 specifications for dimensional accuracy and performance standards. The product meets environmental compliance requirements including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring safe use across various industrial sectors. Critical dimensions include 0.594" head diameter, 1-1/4" length, and 0.26" square neck width for proper anti-rotation functionality.