S-93180A325 5/16"-18 x 1 1/4" 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
- Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh environments like marine and chemical processing
- Superior mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable, long-term performance
- Secure anti-rotation design with a square neck that prevents spinning during installation, ensuring stable fastening
- Easy installation and removal with UNC coarse threading and Class 2A thread fit for smooth engagement
- Wide-rounded head profile provides enhanced bearing surface and reduces surface damage
- Full thread coverage along the 1 1/4" length allows for versatile adjustment in various material thicknesses
- Compliance with industry standards including ASME B18.5, RoHS 3, and REACH for safe, regulated use
Professional Applications & Engineering Value
This 316 stainless steel carriage bolt is engineered to address critical challenges in demanding industrial settings. Its high corrosion resistance makes it perfect for marine applications, chemical plants, and high-moisture environments where standard fasteners fail. The square neck design ensures the bolt remains fixed during tightening, preventing rotation and maintaining alignment in wood, metal, or composite assemblies. With UNC coarse threading and Class 2A thread fit, it offers quick installation and reliable hold in coarse-grained materials. The rounded head minimizes stress concentration, reducing the risk of surface damage, while the fully threaded shank accommodates varying material depths, providing flexibility in construction and machinery projects.
Specification Summary & Compliance
This carriage bolt features precise Class 2A thread fit and adheres to UNC coarse thread standards with a 5/16"-18 thread size. It meets ASME B18.5 specifications for dimensional accuracy and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are upheld for industrial use.
