S-90124A326 3/8"-16 x 2" ASME B18.2.1, SAE J429 Steel Wire-Lockable Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 120,000 psi ensures reliable performance in demanding applications, reducing the risk of fastener failure.
• Durable black-oxide steel construction provides enhanced corrosion resistance, extending the service life of the fastener in various environments.
• Grade 5 classification and Rockwell C25 hardness offer a robust balance of strength and toughness, suitable for high-stress industrial assemblies.
• Coarse UNC thread and Class 2A fit enable quick and secure installation, minimizing assembly time while maintaining precise thread engagement.
• External hex drive design allows for high-torque application with standard tools, ensuring tight and stable fastening in machinery and structural applications.
• Partial threading provides unthreaded shank strength where needed, ideal for applications requiring clamping force without full thread engagement.
• Compliance with ASME B18.2.1 and RoHS 3 guarantees adherence to industry standards and environmental regulations, ensuring safety and reliability.

Professional Applications & Engineering Value

This Grade 5 black-oxide steel hex head screw is engineered to address critical challenges in industrial fastening, such as vibration resistance and mechanical stress. The coarse UNC thread and Class 2A fit ensure consistent performance in heavy machinery, automotive assemblies, and construction projects, where precise thread alignment and durability are paramount. The external hex drive facilitates efficient installation with common tools, reducing labor time while the partial threading design enhances clamp load distribution. Ideal for applications requiring high tensile strength and corrosion protection, this screw provides a reliable solution for securing components in harsh environments, backed by compliance with ASME B18.2.1 and environmental standards like RoHS 3.

Specification Summary & Compliance

This screw features a 3/8"-16 UNC coarse thread with Class 2A tolerance for precise fit, a 2" length, and partial threading with a minimum thread length of 1". It meets ASME B18.2.1 and SAE J429 specifications, ensuring dimensional accuracy and performance reliability. Additionally, it is RoHS 3 (2015/863/EU) compliant, confirming adherence to environmental regulations for hazardous substance restrictions.