S-90152A123 2-56 x 1/4" ASME B18.3, ASTM F837 Stainless Steel Wire-Lockable Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional Corrosion Resistance: Crafted from 18-8 Stainless Steel, this screw offers long-term reliability in harsh or humid environments, reducing maintenance and replacement costs.
• High Tensile Strength for Demanding Applications: With a 80,000 psi tensile strength and Rockwell B70 hardness, it withstands high stress and vibration, ensuring joint integrity.
• Precision Thread Fit for Secure Fastening: The Class 3A thread fit on the 2-56 UNC coarse thread provides a tight, secure connection, minimizing the risk of loosening.
• Optimized for High-Torque Applications: The 5/64" hex drive and standard socket head profile allow for efficient installation with common tools, even in confined spaces.
• Full Thread Engagement for Maximum Grip: As a fully threaded cap screw, it ensures consistent holding power along the entire 1/4" length.
• Compliance with Major Industry Standards: Meets ASME B18.3 specifications, ensuring dimensional accuracy and interchangeability for professional use.
• Environmentally Compliant for Global Supply Chains: Adheres to RoHS 3 and REACH regulations, making it suitable for international markets and sensitive applications.

Professional Applications & Engineering Value

This 2-56 UNC Thread Socket Head Cap Screw is engineered to solve critical fastening challenges in precision industries. The 18-8 Stainless Steel construction provides excellent corrosion resistance, making it ideal for machinery, electronics, and outdoor equipment exposed to moisture or chemicals. Its high tensile strength (80,000 psi) and Rockwell B70 hardness ensure it can handle dynamic loads and vibrations without failing. The Class 3A thread fit and coarse thread design allow for quick assembly and a reliable hold, reducing the risk of strip-out in soft materials or high-cycle applications. The 5/64" hex drive facilitates secure tool engagement, which is crucial for maintaining torque accuracy in automated or manual assembly lines. These features make it a trusted component for OEMs and maintenance teams requiring durable, industrial-grade fasteners.

Specification Summary & Compliance

This socket head cap screw features a 2-56 UNC thread with a Class 3A fit, ensuring precise dimensional accuracy per ASME B18.3 standards. It is manufactured from 18-8 Stainless Steel and is fully threaded with a right-hand direction. The product is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and global industrial applications.