S-92356A591 5/16"-18 x 2" 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 thanks to 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 performance under high-stress conditions.
- Secure anti-rotation locking provided by the integrated square neck, preventing the bolt from spinning during installation and use.
- Wide, rounded head design with a 0.719" diameter distributes clamping force effectively and provides a finished appearance.
- Easy and quick installation with fully threaded, coarse (UNC) right-hand threads and Class 2A fit for standard tool compatibility.
- Proven reliability and interchangeability, manufactured to meet the stringent dimensional requirements of ASME B18.5 standard.
- Compliant for global use, adhering to RoHS 3 and REACH environmental regulations for safe and responsible manufacturing.
Professional Applications & Engineering Value
This 5/16"-18 UNC carriage bolt is engineered to solve critical challenges in construction, machinery assembly, and transportation equipment. The 18-8 Stainless Steel material provides excellent resistance to rust and corrosion, making it a durable choice for outdoor structures, marine applications, and food processing facilities where moisture is a concern. The square neck design is a key engineering feature, biting securely into the mounting material to prevent rotation when torque is applied, eliminating the need for a second wrench and speeding up assembly. The fully threaded body and coarse thread spacing ensure a strong, deep grip in wood, metal, and other common materials, providing a vibration-resistant connection that maintains integrity in demanding industrial applications.
Specification Summary & Compliance
This carriage bolt features a Class 2A thread fit for standard tolerance and easy assembly. It adheres to the UNC (Unified Coarse) thread standard with a size of 5/16"-18. Manufacturing and dimensional specifications conform to the ASME B18.5 standard. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations.
