S-93180A266 1/4"-20 x 4" 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 environments and outdoor applications
- Enhanced anti-rotation performance due to the square neck design that prevents spinning during installation
- High tensile strength of 70,000 psi ensures reliable load-bearing capacity for heavy-duty industrial use
- Excellent durability provided by Rockwell B55 hardness, resisting deformation under stress
- Easy and secure fastening with fully threaded UNC coarse thread design for quick assembly
- Precise thread fit with Class 2A tolerance, ensuring consistent performance and compatibility
- Compliance with industry standards including ASME B18.5, RoHS 3, and REACH for safe, regulated use
Professional Applications & Engineering Value
This 1/4"-20 UNC carriage bolt is engineered to address common industrial challenges such as loosening under vibration and corrosion in demanding environments. Constructed from 316 Stainless Steel, it offers exceptional resistance to chemicals, moisture, and saltwater, making it perfect for marine, construction, and chemical processing applications. The fully threaded design with coarse UNC threads allows for deep penetration and strong holding power in wood, metal, or composite materials. The square neck securely locks into place, preventing rotation during torque application and reducing installation time. This combination of corrosion-resistant material and robust structural features ensures long-term reliability, minimizing maintenance and replacement costs in heavy-duty industrial settings.
Specification Summary & Compliance
This carriage bolt features precise Class 2A thread fit with UNC coarse threading (1/4"-20) and a 4" length for accurate fastening. It meets ASME B18.5 standards for dimensional consistency and performance. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance adherence.
