S-94050A420 3/8"-16 x 1 1/2" 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 for long-lasting performance in marine and harsh industrial environments
- Square neck design prevents rotation during installation and provides maximum anti-rotation security
- Fully threaded construction ensures consistent engagement and reliable fastening throughout the entire length
- Coarse UNC threading with Class 2A fit enables quick installation and reliable thread engagement
- Rounded head profile provides a finished appearance while reducing snagging hazards
- Compliance with ASME B18.5 standards guarantees dimensional accuracy and manufacturing consistency
- Environmental compliance with RoHS 3 and REACH regulations for responsible sourcing and usage
Professional Applications & Engineering Value
These silicon bronze carriage bolts are specifically engineered to address corrosion challenges in demanding applications. The marine-grade silicon bronze material provides exceptional resistance to saltwater corrosion, making them ideal for marine hardware, dock construction, and coastal infrastructure. The square neck design solves the common problem of bolt rotation during nut tightening, ensuring secure installation without the need for additional locking mechanisms. The fully threaded UNC coarse thread pattern combined with Class 2A thread fit delivers reliable performance in vibration-prone environments while allowing for faster assembly compared to fine-thread alternatives. These features make them particularly valuable for heavy-duty applications where both corrosion resistance and anti-rotation properties are critical for long-term structural integrity.
Specification Summary & Compliance
This 3/8"-16 UNC carriage bolt features precise Class 2A thread fit tolerances and complies with ASME B18.5 manufacturing standards for dimensional accuracy. The product meets RoHS 3 (2015/863/EU) compliance for hazardous substance restrictions and REACH (EC 1907/2006) regulations for chemical safety. The square neck carriage bolt design maintains consistent 0.39" neck width and 0.22" neck length specifications as per standard requirements, ensuring proper anti-rotation performance across all applications.
