S-92356A148 3/8"-16 x 3 3/4" ASME B18.5 Carriage Bolts

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and outdoor applications.
• Enhanced anti-rotation performance due to the integrated square neck design, preventing bolt spin during installation and use.
• High tensile strength of 70,000 psi ensures reliable load-bearing capacity for demanding industrial and construction tasks.
• Excellent durability and hardness (Rockwell B55) provides resistance to wear, deformation, and mechanical stress.
• Wide, rounded carriage head offers a low-profile, finished appearance and distributes clamping force effectively.
• Coarse UNC threading and full thread length enable faster installation and secure gripping in various materials.
• Compliance with major industry standards including ASME B18.5, RoHS 3, and REACH, ensuring safety and environmental responsibility.

Professional Applications & Engineering Value

This 3/8"-16 UNC Carriage Bolt is engineered to address critical fastening challenges in industrial machinery, automotive assemblies, and structural construction. The 18-8 Stainless Steel material provides exceptional corrosion resistance, reducing maintenance needs in humid or chemically exposed settings. Its square neck design locks securely into place, eliminating rotation and ensuring stable connections in wood, metal, and composite applications. With a Class 2A thread fit and coarse thread spacing, it offers quick, reliable installation and high resistance to vibration loosening. The fully threaded configuration and rounded head profile make it a versatile, heavy-duty solution for projects requiring both strength and a clean aesthetic finish.

Specification Summary & Compliance

This carriage bolt features precise inch system measurements, including a 3/8"-16 UNC thread size with Class 2A thread fit for consistent engagement and tolerance. It is manufactured in accordance with ASME B18.5 specifications, ensuring dimensional accuracy and performance reliability. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming adherence to environmental and safety regulations for hazardous substances.