S-90185A198 1/2"-13 x 1 3/4" ASME B18.5, SAE J429 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-flake coating that provides long-lasting protection in demanding industrial environments
• Prevents rotation during installation thanks to the integrated square neck design that locks securely into materials
• High-strength performance with Grade 5 classification and 120,000 psi tensile strength for heavy-duty applications
• Optimized thread engagement through UNC coarse threading and Class 2A fit ensuring reliable fastening in various materials
• Enhanced durability with Rockwell C25 hardness that maintains structural integrity under repeated stress
• Wide compatibility with rounded carriage head profile that distributes load evenly and fits standard wrench sizes
• Regulatory compliance meeting ASME B18.5, RoHS 3, and REACH standards for global industrial use

Professional Applications & Engineering Value

This heavy-duty carriage bolt delivers exceptional engineering value through its zinc-flake coated steel construction and precision UNC coarse threading. The combination of Grade 5 strength classification and 120,000 psi tensile strength addresses critical failure points in structural applications where vibration and dynamic loads are concerns. The square neck design provides anti-rotation security that eliminates the need for secondary locking mechanisms, streamlining installation in wood-to-metal and structural steel connections. Particularly valuable in construction, agricultural equipment, and transportation infrastructure, this fully threaded carriage bolt maintains consistent clamping force while the rounded head profile prevents surface damage and ensures flush mounting.

Specification Summary & Compliance

This carriage bolt features precise 1/2"-13 UNC coarse thread spacing with Class 2A thread fit tolerance for reliable engagement. Manufacturing adheres to ASME B18.5 specifications SAE J429, ensuring dimensional accuracy and performance consistency. The product is fully compliant with RoHS 3 (2015/863/EU) regulations and REACH (EC 1907/2006) standards (01/17/2023 233 SVHC), meeting international environmental and safety requirements for industrial components.