S-95362A316 3/8"-16 x 1 1/2" ASME B18.2.1, SAE J429, ASTM A354BD, MS90728-64 Mil. Spec. High-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional Load-Bearing Capacity: With a tensile strength of 150,000 psi, this screw reliably handles high-stress applications, reducing the risk of fastener failure in demanding environments.
• Superior Corrosion Resistance: The zinc yellow-chromate plating on steel provides a durable barrier against rust and corrosion, extending service life in harsh industrial settings.
• High-Strength Material Grade: Manufactured as Grade 8 with Rockwell C33 hardness, it offers excellent durability and resistance to wear and deformation under heavy loads.
• Optimized Thread Design: The 3/8"-16 UNC coarse thread and Class 2A thread fit ensure easy, precise assembly and reliable grip in a wide range of materials.
• Secure and Efficient Fastening: The external hex drive and hex head design allow for high torque application, providing a tight, secure connection that resists loosening.
• Partial Threading for Versatility: The partially threaded shank allows for unthreaded engagement in certain sections, providing enhanced clamping force and alignment in specific assemblies.
• Regulatory and Standards Compliance: Meets ASME B18.2.1, SAE J429, ASTM A354BD, and MS90728-64 specifications, and is REACH compliant, ensuring quality and environmental safety for global industrial use.

Professional Applications & Engineering Value

This Grade 8 hex head screw is engineered to address critical challenges in heavy machinery, construction, and automotive assemblies where high tensile strength and corrosion resistance are paramount. The zinc yellow-chromate plated steel construction combats environmental degradation, while the 3/8"-16 UNC coarse thread and partial threading enhance grip and reduce the risk of cross-threading in coarse-grained materials. Its external hex drive facilitates quick installation with standard tools, minimizing assembly time in production lines. Ideal for structural frames, engine components, and industrial equipment, this fastener ensures long-term reliability under dynamic loads and harsh conditions, supporting operational efficiency and reducing maintenance costs.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC coarse thread with a Class 2A thread fit for precise dimensional accuracy, and a minimum thread length of 1 inch. It complies with ASME B18.2.1, SAE J429, ASTM A354BD, and MS90728-64 manufacturing standards, ensuring consistent quality and performance. The product is also REACH (EC 1907/2006) compliant, meeting environmental regulations for safe use in industrial applications.