S-90185A413 1/4"-20 x 2 1/4" 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
- Superior load-bearing capacity with 120,000 psi tensile strength, ideal for demanding structural and machinery applications
- Enhanced corrosion resistance through zinc plating, extending service life in various industrial environments
- Anti-rotation square neck design prevents spinning during installation, ensuring secure and efficient assembly
- Precision Class 3A UNC coarse threading provides reliable engagement and vibration resistance in heavy-duty fastening
- High-strength Grade 5 classification guarantees consistent performance under stress, backed by ASME B18.5 and SAE J429 standards
- Fully threaded shank offers maximum grip length and flexibility for diverse mounting requirements
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and global market acceptability
Professional Applications & Engineering Value
This Grade 5 carriage bolt is engineered to address critical challenges in industrial assembly, where vibration resistance and structural integrity are paramount. The zinc-plated steel construction combats rust and degradation in harsh conditions, while the square neck securely locks into materials to prevent rotation—eliminating the need for secondary tools during tightening. With its 1/4"-20 UNC coarse thread and Class 3A fit, it delivers precise, durable connections in wood-to-metal frameworks, agricultural equipment, trailer builds, and construction projects. The fully threaded design accommodates varying material thicknesses, making it a versatile choice for OEMs and maintenance teams seeking reliable, high-strength fastening solutions.
Specification Summary & Compliance
This carriage bolt features a 1/4"-20 UNC coarse thread with Class 3A tolerance for precise fit, and is manufactured from zinc-plated steel with a hardness of Rockwell C25. It meets ASME B18.5 and SAE J429 specifications for Grade 5 fasteners, and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards.
