S-90185A162 1/4"-20 x 1 1/2" ASME B18.5, SAE J429 Carriage Bolts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with zinc-flake coating for long-lasting performance in harsh industrial environments
• Superior load-bearing capability with Grade 5 classification and 120,000 psi tensile strength for heavy-duty applications
• Secure anti-rotation locking through integrated square neck design that prevents spinning during installation
• Optimized thread engagement with coarse UNC threading and Class 2A fit for faster assembly and reliable connections
• Enhanced durability with Rockwell C25 hardness that maintains structural integrity under repeated stress
• Broad compatibility with fully threaded right-hand design accommodating various material thicknesses
• Regulatory compliance assurance meeting ASME B18.5 standards while being RoHS 3 and REACH compliant

Professional Applications & Engineering Value

These Grade 5 carriage bolts with zinc-flake coated steel construction address critical industrial fastening challenges where corrosion resistance and structural integrity are paramount. The combination of 1/4"-20 UNC coarse threading and Class 2A thread fit ensures rapid installation in wood-to-metal and structural steel applications while maintaining precise tolerances. The integrated square neck design eliminates rotational movement during torque application, providing secure fastening in construction equipment, agricultural machinery, and transportation infrastructure. With 120,000 psi tensile strength and Rockwell C25 hardness, these fully threaded carriage bolts withstand vibration and dynamic loads in demanding environments, making them ideal for assembly lines requiring consistent performance and reduced maintenance intervals.

Specification Summary & Compliance

This carriage bolt features precise Class 2A thread fit with 1/4"-20 UNC coarse threading and right-hand direction. Manufactured to ASME B18.5 specifications where identified as SAE J429, ensuring dimensional accuracy and interchangeability. The product maintains compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety standards. With a 1 1/2" length and fully threaded design, these fasteners provide consistent performance across industrial applications requiring Grade 5 mechanical properties.