S-92356A143 5/16"-18 x 1 5/8" 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 industrial environments and outdoor applications
- Enhanced anti-rotation performance due to the integrated square neck design, preventing bolt spin during installation and under vibration
- High tensile strength of 70,000 psi ensures reliable load-bearing capacity for demanding construction and machinery applications
- Excellent durability with Rockwell B55 hardness, providing resistance to wear and deformation over extended use
- Wide rounded head profile offers superior load distribution and a finished appearance, reducing surface damage
- Precise Class 2A thread fit with UNC coarse threading for easier, faster assembly and reduced cross-threading risk
- Full threading along the entire 1-5/8" length allows for flexible nut placement and secure fastening at any point
Professional Applications & Engineering Value
This 5/16"-18 UNC carriage bolt is engineered to address common industrial fastening challenges, particularly where vibration resistance and corrosion prevention are critical. The 18-8 Stainless Steel material provides excellent resistance to rust and chemical exposure, making it suitable for construction, agricultural equipment, and marine applications. The square neck securely locks into materials, eliminating rotation during torque application and maintaining alignment in wood-to-metal and structural connections. With its coarse UNC threading and fully threaded design, it ensures quick installation and reliable holding power in timber, steel framing, and machinery assemblies, reducing maintenance needs and downtime.
Specification Summary & Compliance
This carriage bolt features a 5/16"-18 UNC coarse thread with Class 2A fit for standard tolerance and easy assembly. It complies with ASME B18.5 dimensional standards, ensuring interchangeability and performance consistency. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for hazardous substances.
