S-90185A170 5/16"-18 x 1 1/4" ASME B18.5, SAE J429 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 zinc-flake coating for extended service life in harsh industrial environments
- Exceptional load-bearing capacity with 120,000 PSI tensile strength for heavy-duty applications
- Secure anti-rotation design featuring a square neck that prevents spinning during installation
- Reliable thread engagement with UNC coarse threading and Class 2A fit for consistent fastening performance
- Optimized material hardness at Rockwell C25 providing excellent durability and resistance to deformation
- Versatile fully-threaded design allowing for maximum adjustability and clamping force distribution
- Regulatory compliance assurance meeting major industrial standards for quality and safety
Professional Applications & Engineering Value
This Grade 5 carriage bolt delivers exceptional engineering value through its zinc-flake coated steel construction and precision UNC coarse threading. The combination of 120,000 PSI tensile strength and Rockwell C25 hardness ensures reliable performance in demanding applications where vibration resistance and structural integrity are critical. The square neck design effectively prevents rotation during assembly, making it ideal for structural connections in machinery, construction frameworks, and transportation equipment. The fully threaded configuration provides maximum thread engagement for superior clamping force distribution across joined materials, while the Class 2A thread fit guarantees consistent installation torque values and reliable fastening performance in industrial settings.
Specification Summary & Compliance
This carriage bolt features precision 5/16"-18 UNC coarse threading with Class 2A fit tolerances, ensuring optimal thread engagement and installation consistency. Manufactured to meet ASME B18.5 and SAE J429 specifications for dimensional accuracy and mechanical properties. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for industrial applications requiring strict regulatory adherence.
