S-90117A634 3/8"-16 x 2 1/2" ASME B18.3 Alloy Steel Wire-Lockable Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
• Black-oxide coating on alloy steel provides enhanced corrosion resistance and durability in demanding industrial environments.
• Class 3A thread fit offers superior precision and consistent engagement, minimizing assembly issues and improving joint integrity.
• Partially threaded design with 1 1/4" minimum thread length allows for secure clamping in specific zones without unnecessary threading.
• 5/16" hex drive and standard socket head facilitate easy installation and removal with common tools, saving time during maintenance.
• Coarse UNC threads enable quick assembly and disassembly, ideal for applications requiring frequent adjustments.
• Compliance with ASME B18.3, RoHS 3, and REACH ensures adherence to industry standards and environmental regulations, supporting safe and sustainable operations.

Professional Applications & Engineering Value

This Black-Oxide Alloy Steel Socket Head Cap Screw is engineered to address critical challenges in industrial settings, such as vibration resistance and long-term reliability. The 3/8"-16 UNC coarse thread design allows for rapid installation in machinery, automotive assemblies, and heavy equipment, where time efficiency is crucial. With a Rockwell C37 hardness and high tensile strength, it withstands extreme loads and repetitive stress, reducing maintenance downtime. The partially threaded configuration ensures precise clamping in structural applications, preventing over-tightening and thread damage. Ideal for use in industrial screws and heavy-duty fasteners, this component delivers consistent performance in environments demanding corrosion resistance and mechanical integrity, supported by its compliant ASME B18.3 specifications.

Specification Summary & Compliance

This screw features a Class 3A thread fit for high precision, with dimensions including a 2 1/2" length and 3/8"-16 UNC coarse threads. It meets ASME B18.3 manufacturing standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industry adherence.