S-93604A637 1/4"-20 x 6" ASTM A307, ASTM A153, ASME B18.5 Carriage Bolts
Carriage Bolts
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Neck & Shank Parameters
Dimension Parameters
Thread Parameters
Material & Strength Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with hot-dipped galvanized steel coating, ideal for outdoor and harsh industrial environments.
- Excellent tensile strength of 60,000 PSI (Grade 2) ensures reliable performance in heavy-duty applications without failure.
- Secure anti-rotation design with a square neck that locks into materials, preventing spinning during installation.
- Easy and quick installation thanks to fully threaded UNC coarse pattern and Class 2A thread fit for smooth engagement.
- High durability and hardness with Rockwell B70 rating, reducing wear and extending service life.
- Broad compliance with industry standards including ASTM A307 and ASME B18.5, ensuring consistent quality and safety.
- Environmentally safe and regulated with RoHS 3 and REACH compliance, suitable for global industrial supply chains.
Professional Applications & Engineering Value
This hot-dipped galvanized steel carriage bolt is engineered to address common industrial challenges such as corrosion, vibration loosening, and structural integrity. The square neck design provides a firm grip in wood or metal, eliminating the need for additional locking washers and speeding up assembly in construction, machinery, and transportation equipment. With a fully threaded UNC coarse pattern and Class 2A thread fit, it offers precise, reliable fastening in high-stress environments, while the Grade 2 strength and robust material ensure long-term performance in outdoor or corrosive settings, reducing maintenance costs and downtime.
Specification Summary & Compliance
This carriage bolt features a 1/4"-20 UNC coarse thread with Class 2A thread fit for standard tolerance and easy assembly. It complies with ASTM A307 and ASME B18.5 specifications, ensuring dimensional accuracy and manufacturing consistency. Additionally, it is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting environmental and safety regulations for industrial use.
