S-91236A651 3/8"-16 x 7 1/2" ASME B18.2.1, ASTM A307 Low-Strength Steel Hex Head Screws

Key Features & Benefits at a Glance

• High tensile strength of 60,000 PSI ensures reliable performance in demanding applications, reducing the risk of fastener failure.
• Zinc plating provides excellent corrosion resistance, extending the service life of the screw in various industrial environments.
• Coarse UNC thread with Class 2A fit allows for quick and easy installation, saving time during assembly.
• External hex drive and hex head design offers superior torque transmission and easy access with standard tools, minimizing stripping.
• Partial threading provides an unthreaded shank for enhanced shear strength, ideal for applications requiring clamping force.
• Compliance with ASME B18.2.1 and ASTM A307 guarantees consistent quality and interchangeability, ensuring project specifications are met.
• RoHS 3 and REACH compliance makes this screw suitable for use in regulated industries, supporting environmental and safety standards.

Professional Applications & Engineering Value

This 3/8"-16 UNC hex head screw is engineered to address common industrial challenges, such as the need for durable, high-strength fastening in structural and heavy machinery applications. Constructed from steel with a zinc-plated finish, it resists corrosion and wear, making it ideal for outdoor or harsh environments. The coarse thread and partial threading design enhance grip and reduce the likelihood of loosening under vibration, while the external hex drive allows for efficient installation with common wrenches. Commonly used in construction, automotive, and manufacturing sectors, this screw provides reliable performance in assemblies requiring 60,000 PSI tensile strength and compliance with industry standards like ASME B18.2.1, ensuring long-term reliability and safety.

Specification Summary & Compliance

This screw features precise Class 2A thread fit and adheres to UNC thread standards with a size of 3/8"-16. It is manufactured in accordance with ASME B18.2.1 and ASTM A307 specifications, ensuring dimensional accuracy and performance. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for use in environments with strict environmental and health safety requirements.