S-90185A140 1/2"-13 x 2" ASME B18.5, SAE J429 Carriage Bolts

Key Features & Benefits at a Glance

• Enhanced Corrosion Resistance with black-oxide steel coating, ideal for demanding industrial environments.
• Superior Anti-Rotation Performance due to the square neck design, preventing loosening under vibration.
• High Tensile Strength of 120,000 psi ensures reliable fastening in heavy-duty applications.
• Rockwell C25 Hardness provides excellent durability and resistance to wear.
• Fully Threaded UNC Coarse Pattern allows for quick installation and strong holding power.
• Grade 5 Strength Classification guarantees consistent performance for structural and machinery uses.
• Wide Rounded Head Profile distributes load evenly, reducing surface damage.

Professional Applications & Engineering Value

This Grade 5 carriage bolt is engineered to address common industrial challenges such as vibration-induced loosening and corrosion. Made from black-oxide steel, it offers enhanced protection against rust, making it suitable for outdoor or humid conditions. The square neck and fully threaded UNC coarse pattern ensure secure, anti-rotation fastening in wood-to-metal or structural assemblies, reducing maintenance needs. With a tensile strength of 120,000 psi and Rockwell C25 hardness, it provides reliable performance in heavy machinery, construction, and automotive applications, delivering long-term engineering value by minimizing downtime and replacement costs.

Specification Summary & Compliance

This carriage bolt adheres to Class 2A thread fit for precise tolerance and features UNC coarse threads with a 1/2"-13 thread size. It meets ASME B18.5 and SAE J429 standards, ensuring manufacturing consistency. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it supports environmental and safety requirements for industrial use.