S-93604A691 3/8"-16 x 5 1/2" ASTM A307, ASTM A153, ASME B18.5 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 corrosion resistance with hot-dipped galvanized steel coating, ideal for outdoor and harsh industrial environments.
- Reliable anti-rotation performance due to the integrated square neck design, preventing bolt spin during installation and use.
- High tensile strength of 60,000 psi and Grade 2 classification ensures dependable load-bearing capacity for structural applications.
- Easy and quick installation with fully threaded UNC coarse threading and Class 2A fit, reducing assembly time and labor costs.
- Exceptional durability backed by Rockwell B70 hardness, maintaining integrity under repetitive stress and vibration.
- Broad compatibility with standard UNC thread size 3/8"-16, facilitating seamless integration into existing assemblies.
- Compliance with major industry standards including ASTM A307 and ASME B18.5, guaranteeing consistent quality and safety.
Professional Applications & Engineering Value
This hot-dipped galvanized steel carriage bolt is engineered to address common industrial challenges such as corrosion, loosening under vibration, and installation inefficiency. The square neck securely locks into materials, eliminating rotation during tightening and ensuring stable connections in wood-to-metal and structural framing applications. With a fully threaded UNC coarse thread and Class 2A fit, it offers precise engagement and rapid assembly in construction, agricultural machinery, and transportation equipment. The robust Grade 2 strength and 60,000 psi tensile capacity provide long-term reliability in load-bearing scenarios, reducing maintenance needs and downtime.
Specification Summary & Compliance
This carriage bolt adheres to precise dimensional standards, including a Class 2A thread fit for consistent engagement and UNC coarse threading. It meets manufacturing specifications per ASTM A307 and ASME B18.5, ensuring interoperability and performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible and safe usage in global markets.
