S-90357A150 3/8"-16 x 1/2" Alloy Steel Ultra-Low-Profile Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 140,000 psi provides reliable performance in high-stress industrial applications, reducing the risk of fastener failure.
• Class 3A thread fit precision ensures tight, secure connections with minimal backlash, enhancing assembly accuracy and vibration resistance.
• Black-oxide surface treatment on alloy steel offers improved corrosion resistance and a durable, non-reflective finish for long-term use.
• Ultra-low socket head profile allows installation in confined spaces while maintaining high torque capability with a 3/16" hex drive.
• Fully threaded design delivers consistent clamping force along the entire 1/2" length, maximizing holding power in demanding setups.
• Coarse UNC threads enable quick assembly and disassembly, reducing installation time and improving efficiency in production environments.
• Rockwell C32 hardness ensures high wear resistance and durability, extending the screw's service life under repetitive loads.

Professional Applications & Engineering Value

These socket head cap screws are engineered to address common challenges in precision machinery, automotive, and heavy equipment sectors. The black-oxide alloy steel construction combats rust and wear, while the ultra-low profile head and 3/8"-16 UNC coarse threads facilitate easy access and rapid fastening in tight spaces. With a Class 3A thread fit, they minimize loosening under vibration, ensuring stable connections in dynamic environments. Ideal for high-strength industrial fastening, these screws support efficient assembly lines and reduce maintenance downtime, backed by 140,000 psi tensile strength for demanding applications.

Specification Summary & Compliance

This screw adheres to inch system measurements with a length tolerance of -0.005" to 0.005" and features right-hand UNC coarse threads meeting Class 3A precision standards. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial use.