S-90185A146 1/2"-13 x 4 1/2" 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
- Prevents rotation during installation with integrated square neck design for secure, vibration-resistant fastening
- Superior corrosion resistance thanks to black-oxide steel finish, extending service life in demanding environments
- High-strength performance with Grade 5 classification and 120,000 psi tensile strength for heavy-duty applications
- Reliable thread engagement through fully threaded UNC coarse pattern and Class 2A fit for quick assembly
- Enhanced durability with Rockwell C25 hardness that maintains integrity under repeated stress
- Wide head distribution provides increased bearing surface to prevent pull-through in softer materials
- Industry-standard compliance ensures interchangeability and meets rigorous ASME B18.5 specifications
Professional Applications & Engineering Value
This Grade 5 carriage bolt delivers exceptional engineering value for industrial and construction applications where vibration resistance and reliability are critical. The combination of black-oxide steel material and protective coating provides essential corrosion protection for outdoor structures, equipment frames, and machinery assemblies. The square neck design effectively prevents rotation during tightening, eliminating the need for secondary locking mechanisms and reducing installation time. With its fully threaded UNC coarse pattern and Class 2A thread fit, this fastener ensures consistent performance in wood-to-metal and structural steel connections, making it ideal for trailer manufacturing, building frameworks, and heavy equipment maintenance where 120,000 psi tensile strength is required to withstand dynamic loads and stress.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance and UNC coarse threading (1/2"-13). This carriage bolt conforms to ASME B18.5 specifications and meets SAE J429 Grade 5 requirements for mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.
