S-92356A603 5/16"-18 x 5" 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 18-8 Stainless Steel construction, ideal for harsh environments and outdoor applications
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for reliable heavy-duty fastening
- Secure anti-rotation locking provided by the square neck design, preventing bolt spin during installation and vibration
- Wide bearing surface from the rounded carriage head distributes load effectively and reduces surface damage
- Easy and quick installation with fully threaded UNC coarse thread and right-hand direction for standard tool compatibility
- Precise thread fit with Class 2A tolerance ensuring consistent performance and interchangeability
- Regulatory compliance meeting ASME B18.5 standards and environmental regulations (RoHS 3 & REACH) for safe industrial use
Professional Applications & Engineering Value
This 5/16"-18 UNC Carriage Bolt delivers critical engineering value in demanding applications where vibration resistance and structural integrity are paramount. The 18-8 Stainless Steel material provides excellent corrosion resistance, making it suitable for marine, construction, and chemical processing environments. The square neck securely locks into materials, preventing rotation during torque application—solving common loosening issues in machinery, trailer assemblies, and wooden structures. With fully threaded coarse UNC threading, it offers superior grip and faster installation in soft materials like wood and composite panels. The combination of 70,000 psi tensile strength and Rockwell B55 hardness ensures long-term reliability in heavy-duty fastening, reducing maintenance needs and downtime in industrial operations.
Specification Summary & Compliance
This carriage bolt features precise Class 2A thread fit and conforms to UNC coarse thread standards (5/16"-18). Manufacturing and dimensional specifications strictly adhere to ASME B18.5. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial supply chains.
