S-93180A420 3/8"-16 x 1" 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 in harsh environments thanks to 316 stainless steel construction
- Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
- Reliable anti-rotation performance ensured by the square neck design under the wide rounded carriage head
- Broad compatibility with UNC coarse threading and Class 2A fit for easy installation and secure fastening
- Full thread engagement along the 1" length provides maximum grip and load distribution
- Regulatory compliance assurance meeting ASME B18.5 standards, RoHS 3, and REACH for quality and safety
- Optimized head design with 0.844" diameter and 0.208" height for enhanced bearing surface and aesthetic finish
Professional Applications & Engineering Value
This 316 stainless steel carriage bolt is engineered to solve critical challenges in industrial settings where corrosion resistance and structural integrity are paramount. The square neck securely locks into materials, preventing rotation during torque application—ideal for wood-to-metal connections, structural framing, and machinery assembly. Its UNC coarse thread and Class 2A thread fit ensure quick installation and reliable performance in high-vibration environments. With a fully threaded design and 70,000 psi tensile strength, it provides uniform stress distribution, making it perfect for heavy-duty fastening in construction, marine, and chemical processing applications where durability and compliance with ASME B18.5 standards are essential.
Specification Summary & Compliance
This carriage bolt adheres to precise dimensional and performance criteria, including a Class 2A thread fit for consistent engagement and UNC coarse threading (3/8"-16) per industry standards. Manufacturing follows ASME B18.5 specifications, ensuring reliability in mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing safety and environmental responsibility. Key dimensions include a 1" length, 0.375" screw diameter, and 0.39" neck width for secure anti-rotation performance.
