S-90185A434 7/16"-14 x 3" 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 capacity with 120,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance through zinc-plated steel construction, extending service life in harsh environments
- Enhanced anti-rotation security with integrated square neck design that prevents spinning during installation
- Precision thread engagement with Class 3A UNC coarse threading ensuring consistent, vibration-resistant connections
- Optimized mechanical properties with Rockwell C25 hardness providing excellent durability and wear resistance
- Wide application compatibility through ASME B18.5 compliance, guaranteeing interchangeability and standardization
- Environmental compliance assurance meeting RoHS 3 and REACH standards for safe, regulated usage
Professional Applications & Engineering Value
This Grade 5 zinc-plated steel carriage bolt delivers critical engineering solutions for industrial fastening challenges. The combination of fully threaded UNC coarse threading and Class 3A thread fit provides superior vibration resistance in heavy machinery, structural assemblies, and transportation equipment. The integrated square neck beneath the rounded carriage head creates positive locking action that prevents rotation during torque application, eliminating the need for additional locking mechanisms. With 120,000 psi tensile strength and Rockwell C25 hardness, this fastener maintains integrity under extreme loads while the zinc-plated finish protects against corrosion in outdoor and industrial environments. These features make it ideal for construction, agricultural equipment, and manufacturing applications where reliability and long-term performance are paramount.
Specification Summary & Compliance
This 7/16"-14 UNC carriage bolt features precision Class 3A thread fit with coarse threading and exact dimensional compliance to ASME B18.5 standards. The fastener meets rigorous manufacturing specifications including Grade 5 strength classification with verified mechanical properties. Environmental compliance is confirmed through RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, ensuring adherence to international regulatory requirements for hazardous substances.
