S-96562A915 2-56 x 5/16" ASME B18.6.3 Thread-Locking Stainless Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Permanent vibration resistance with nylon patch thread locker, ensuring secure fastening in high-motion environments without loosening.
• Excellent corrosion resistance from 18-8 stainless steel and passivated finish, ideal for harsh or humid industrial settings.
• High tensile strength of 60,000 psi provides reliable load-bearing capacity for demanding mechanical assemblies.
• Broad temperature tolerance from -70° to 250°F maintains performance in extreme thermal conditions.
• Easy installation and removal with Phillips No. 1 drive and Class 2A thread fit, reducing assembly time and tool wear.
• Coarse UNC threading offers quick engagement and strong holding power in various materials.
• Compliance with ASME B18.6.3 and environmental regulations ensures quality, safety, and suitability for global markets.

Professional Applications & Engineering Value

These 2-56 UNC nylon patch locking screws are engineered to address critical challenges in industrial and mechanical systems where vibration-induced loosening can lead to equipment failure or safety hazards. The nylon patch thread locker provides a permanent locking mechanism without requiring additional adhesives, simplifying maintenance while ensuring long-term reliability. Made from 18-8 stainless steel with a passivated finish, they resist corrosion in demanding environments such as automotive, electronics, and outdoor machinery. The coarse thread design and fully threaded body enable rapid installation and robust fastening in metals and plastics, reducing assembly errors and downtime. Ideal for vibration-resistant applications, these screws deliver consistent performance across a wide temperature range, supporting precision in aerospace, manufacturing, and consumer goods.

Specification Summary & Compliance

This product adheres to Class 2A thread fit tolerances for consistent engagement and meets ASME B18.6.3 specifications for dimensional accuracy. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material restrictions are upheld. The UNC coarse thread and fully threaded design align with standard industrial requirements for secure fastening.