S-93180A468 3/8"-16 x 4" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 Stainless Steel construction for reliable performance in harsh environments
• Superior anti-rotation security through integrated square neck design that prevents spinning during installation
• High tensile strength of 70,000 psi ensures structural integrity under heavy loads and vibration
• Rockwell B55 hardness provides excellent durability and resistance to deformation
• Fully threaded UNC coarse threading allows for maximum engagement and faster assembly
• Wide rounded carriage head distributes load evenly and provides a finished appearance
• Class 2A thread fit ensures consistent, reliable mating with standard nuts and components

Professional Applications & Engineering Value

This 3/8"-16 UNC carriage bolt delivers exceptional engineering value for demanding industrial applications where corrosion resistance and structural integrity are paramount. The 316 stainless steel composition provides superior protection against chemical exposure, saltwater environments, and extreme weather conditions, making it ideal for marine equipment, chemical processing plants, and outdoor structures. The square neck design effectively prevents rotation during torque application, eliminating the need for secondary locking mechanisms and reducing installation time. With fully threaded coarse UNC threading, these bolts offer maximum thread engagement for secure fastening in wood, metal, and composite materials. The combination of 70,000 psi tensile strength and Rockwell B55 hardness ensures reliable performance in high-vibration applications such as machinery bases, structural framing, and transportation equipment.

Specification Summary & Compliance

This carriage bolt features precision Class 2A thread fit with 3/8"-16 UNC coarse threading and right-hand thread direction. Manufacturing and dimensional specifications strictly comply with ASME B18.5 standards for consistent quality and interoperability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for global industrial applications.