S-93548A802 5/8"-11 x 2" ASTM A307, SAE J429, ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel construction for longer service life in demanding environments
• Secure anti-rotation performance thanks to the integrated square neck design that prevents spinning during installation
• Reliable tensile strength of 60,000 psi (Grade 2 classification) for dependable load-bearing in structural applications
• Superior hardness (Rockwell B70) providing excellent resistance to wear and deformation under stress
• Easy installation and compatibility with UNC coarse threading and Class 2A fit ensuring smooth assembly with standard nuts
• Broad industrial compliance meeting ASTM A307, SAE J429, and ASME B18.5 standards for consistent quality and safety
• Environmental responsibility with RoHS 3 and REACH compliance, supporting sustainable procurement practices

Professional Applications & Engineering Value

This 5/8"-11 UNC carriage bolt is engineered to address common challenges in heavy-duty fastening, such as joint loosening due to vibration and corrosion in outdoor or industrial settings. The zinc-plated steel material offers a protective barrier against rust, extending the fastener's lifespan in construction, agricultural equipment, and transportation infrastructure. Its fully threaded design and coarse thread spacing allow for deep engagement and quick assembly, while the square neck securely locks into materials to prevent rotation during torque application. This combination ensures reliable performance in wood-to-metal connections, trailer assemblies, and structural frameworks where Grade 2 strength and anti-rotation features are critical for safety and durability.

Specification Summary & Compliance

This carriage bolt features precise UNC coarse threads with a Class 2A fit for consistent dimensional accuracy and easy mating with standard nuts. It adheres to manufacturing specifications including ASTM A307, SAE J429, and ASME B18.5, ensuring reliable performance in industrial applications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally conscious procurement without compromising on mechanical properties.