S-90185A436 1/2"-13 x 7" ASME B18.5, SAE J429 Carriage Bolts
Carriage Bolts
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Basic Information
Head Parameters
Neck & Shank Parameters
Dimension Parameters
Thread Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Exceptional load-bearing capability with Grade 5 classification and 120,000 psi tensile strength for reliable performance in structural applications
- Superior corrosion resistance through zinc-plated steel construction, extending service life in harsh industrial environments
- Prevent rotation during installation with integrated square neck design that securely locks into mating materials
- Optimized thread engagement with Class 3A thread fit and UNC coarse threading for faster assembly and vibration resistance
- Enhanced durability with Rockwell C25 hardness rating that maintains structural integrity under repeated stress
- Wide bearing surface distribution from the rounded carriage head design that minimizes surface damage to connected materials
- Full regulatory compliance meeting ASME B18.5 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
This Grade 5 carriage bolt delivers critical engineering solutions for heavy-duty fastening applications where vibration resistance and structural integrity are paramount. The combination of zinc-plated steel construction and Rockwell C25 hardness ensures long-term performance in outdoor equipment, construction frameworks, and agricultural machinery where exposure to elements and dynamic loads are common. The square neck carriage bolt design prevents rotation during torque application, significantly reducing installation time while maintaining precise alignment. With UNC coarse threading and Class 3A thread fit, these bolts provide superior grip in wood, metal, and composite materials, making them ideal for structural connections in trailer manufacturing, industrial platforms, and heavy equipment assembly where failure is not an option.
Specification Summary & Compliance
This carriage bolt features precise 1/2"-13 UNC coarse threading with Class 3A thread fit tolerances and 7" length dimensions manufactured to ASME B18.5 standards. The fastener meets Grade 5 strength requirements with verified 120,000 psi tensile strength and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe use across global markets.
