S-93180A376 5/16"-18 x 5" 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 with 316 stainless steel construction, ideal for harsh industrial and marine environments
- Exceptional tensile strength rated at 70,000 psi for reliable performance in heavy-duty applications
- Secure anti-rotation locking with square neck design that prevents spinning during installation
- Optimized thread engagement through fully threaded 5/16"-18 UNC coarse pattern for maximum grip
- Precision thread fit with Class 2A tolerance ensuring consistent installation and removal
- Enhanced durability with Rockwell B55 hardness for long-term performance under stress
- Regulatory compliance meeting ASME B18.5 standards and environmental regulations (RoHS 3, REACH)
Professional Applications & Engineering Value
These 316 stainless steel carriage bolts deliver exceptional value in demanding industrial settings where corrosion resistance and structural integrity are paramount. The fully threaded UNC coarse pattern provides superior holding power in wood-to-metal and structural applications, while the square neck design eliminates rotation during torque application, saving installation time and ensuring proper alignment. The 5-inch length accommodates thicker materials commonly found in construction, transportation equipment, and marine hardware. With 70,000 psi tensile strength and Rockwell B55 hardness, these fasteners withstand vibration, shock loads, and environmental stressors that would compromise inferior alternatives, making them ideal for permanent installations requiring long-term reliability.
Specification Summary & Compliance
This carriage bolt features precision 5/16"-18 UNC coarse threads with Class 2A thread fit per ASME standards, ensuring consistent engagement and reliable performance. Manufacturing complies with ASME B18.5 specifications for dimensional accuracy and quality assurance. The product is RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental regulations for hazardous substance restrictions. The right-hand thread direction and fully threaded design provide complete thread coverage along the 5-inch shank for maximum fastening versatility.
