S-90185A430 7/16"-14 x 1 1/4" ASME B18.5, SAE J429 Carriage Bolts

Key Features & Benefits at a Glance

• Exceptional strength for demanding applications with Grade 5 classification and 120,000 psi tensile strength, ensuring reliable performance under high stress.
• Superior corrosion resistance provided by the zinc-plated steel construction, extending the bolt's service life in various environmental conditions.
• Effective anti-rotation locking due to the integrated square neck design, which prevents spinning during installation and in high-vibration settings.
• Precise and durable threading with Class 3A UNC coarse threads, offering excellent grip and ease of assembly in coarse-alignment scenarios.
• Enhanced durability and wear resistance from Rockwell C25 hardness, maintaining structural integrity through repeated use.
• Broad industrial compliance meeting ASME B18.5 and SAE J429 standards, ensuring consistency and safety in mechanical assemblies.
• Environmental and safety adherence with RoHS 3 and REACH compliance, making it suitable for regulated industries and sustainable practices.

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel carriage bolt is engineered to address common industrial challenges such as joint failure and loosening under dynamic loads. The square neck design securely locks into materials, preventing rotation during torque application—ideal for wood-to-metal connections in construction, agricultural machinery, and transportation equipment. Its UNC coarse thread with Class 3A fit ensures quick installation and robust holding power, while the zinc plating offers a protective barrier against rust and corrosion in outdoor or humid environments. With a high tensile strength of 120,000 psi, it provides reliable fastening in structural applications, reducing maintenance needs and enhancing operational safety. This bolt is a go-to solution for engineers seeking durability, compliance, and efficiency in heavy-duty industrial fastening.

Specification Summary & Compliance

This carriage bolt features precise UNC coarse threading with Class 3A fit for accurate engagement and strength. It adheres to ASME B18.5 and SAE J429 specifications, ensuring dimensional consistency and performance reliability. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmental safety and regulatory requirements in industrial use.