S-90665A187 3/8"-16 x 1" ASTM A574 Alloy Steel Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated alloy steel construction, extending service life in harsh industrial environments.
• High tensile strength of 140,000 psi ensures reliable performance under extreme loads and vibrations.
• Precise Class 3A thread fit provides excellent engagement and reduces the risk of cross-threading during assembly.
• Low-profile socket head design allows for installation in tight spaces and offers a sleek, flush finish.
• Consistent Rockwell C39 hardness maintains structural integrity and resists wear over repeated use.
• Compliance with ASTM A574 guarantees material quality and manufacturing consistency for engineering applications.
• RoHS 3 and REACH compliant meeting international environmental and safety regulations for global supply chains.

Professional Applications & Engineering Value

This 3/8"-16 UNC socket head cap screw is engineered to address critical challenges in industrial assembly, such as space constraints and high-stress conditions. The low-profile socket head and hex drive enable secure fastening in confined areas, while the zinc-plated alloy steel offers robust protection against corrosion, reducing maintenance needs. With a coarse thread and Class 3A fit, it ensures quick, accurate installation in machinery, automotive, and construction applications, minimizing downtime. The fully threaded design and 140,000 psi tensile strength provide uniform load distribution and durability, making it ideal for heavy-duty industrial fasteners where reliability is paramount.

Specification Summary & Compliance

This product adheres to UNC coarse thread standards with a Class 3A thread fit for precise dimensional accuracy. It meets ASTM A574 specifications for material and manufacturing quality, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance in various markets.