S-93180A494 3/8"-16 x 7" 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 tensile strength of 70,000 psi ensures reliable performance under heavy loads
- Secure anti-rotation locking provided by the square neck design, preventing loosening during vibration
- Easy installation and alignment with the wide, rounded carriage head and partially threaded shank
- Precision threading with UNC coarse thread and Class 2A fit for quick assembly and consistent performance
- Enhanced durability with Rockwell B55 hardness for long service life in demanding applications
- Full regulatory compliance meeting ASME B18.5 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
These 316 stainless steel carriage bolts deliver critical performance advantages in challenging environments where corrosion resistance and structural integrity are paramount. The partially threaded design with UNC coarse threading allows for efficient installation while maintaining maximum grip length. The square neck securely locks into materials during tightening, eliminating rotation and ensuring proper alignment in wood, metal, and composite assemblies. With their 70,000 psi tensile strength and Rockwell B55 hardness, these heavy-duty fasteners provide reliable connections in structural frameworks, marine equipment, industrial machinery, and outdoor infrastructure where exposure to moisture, chemicals, and stress would compromise inferior fasteners.
Specification Summary & Compliance
This 3/8"-16 UNC carriage bolt features precise Class 2A thread fit with coarse thread spacing and partial threading (minimum 1" thread length). Manufactured to ASME B18.5 standards with full compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The bolt measures 7" in length with 0.375" diameter and includes a square neck (0.22" length, 0.39" width) for secure anti-rotation performance.
