S-99477A120 6-32 x 3/8" Plastic Socket Head Screws

Key Features & Benefits at a Glance

• Corrosion-resistant polypropylene construction ensures reliable performance in chemical and moisture-rich environments without rust or degradation.
• Precise Class 2A thread fit guarantees smooth installation and secure fastening with standard UNC coarse threading for reduced cross-threading risks.
• 7/64" hex socket drive provides high torque transmission and tool stability in confined spaces, minimizing slippage during assembly.
• Wide temperature tolerance (-20° to 210° F) maintains structural integrity across diverse operating conditions from freezing to elevated heat.
• Fully threaded design offers consistent clamping force along the entire 3/8" length for uniform load distribution.
• RoHS 3 and REACH compliance meets stringent environmental regulations, making it suitable for regulated industries and global supply chains.
• Lightweight off-white plastic reduces component weight while providing electrical insulation and non-magnetic properties.

Professional Applications & Engineering Value

Engineered for precision fastening in industrial plastic assemblies, this socket head cap screw addresses critical challenges in electrical enclosures, medical devices, and food processing equipment. The polypropylene material eliminates galvanic corrosion when mating with dissimilar metals, while its coarse UNC threading ensures rapid installation in plastic housings without stripping. With a standard hex drive and Class 2A thread fit, it delivers repeatable torque accuracy in automated production lines. The fully threaded 6-32 design maintains vibration resistance in dynamic applications, making it ideal for lightweight structural components where metal alternatives would add unnecessary mass or conductivity risks.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with Class 2A tolerance for consistent dimensional accuracy. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring hazardous substance restrictions are met. The 3/8" length and 0.138" thread diameter maintain interchangeability with standard inch-system components, while the socket head profile follows industry-accepted drive specifications for compatibility with common hex tools.