S-99477A630 1/4"-20 x 7/8" Plastic Socket Head Screws

Key Features & Benefits at a Glance

• Excellent chemical and corrosion resistance due to polypropylene construction, ideal for harsh industrial environments.
• Reliable fastening in temperature-variable applications, performing consistently from -20°F to 210°F.
• Secure, high-torque installation enabled by the 3/16" hex drive and standard socket head design.
• Quick assembly and reduced cross-threading risk with coarse UNC 1/4"-20 threads and Class 2A fit.
• Full-length threading for maximum grip and adjustability across the entire 7/8" length.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe use in regulated markets.
• Lightweight and non-conductive properties perfect for electrical or weight-sensitive assemblies.

Professional Applications & Engineering Value

Engineered for demanding settings, this socket head cap screw in polypropylene addresses common failure points in corrosive or electrically sensitive applications. Its coarse UNC thread and Class 2A fit provide rapid, secure fastening, minimizing installation time and thread damage in high-volume assembly lines. The hex drive and robust socket head allow for precise torque application, essential in machinery, enclosures, and plastic fabrications. With a temperature range of -20°F to 210°F, it remains dependable in outdoor, automotive, or HVAC systems, while RoHS and REACH compliance ensures it meets stringent international regulatory requirements for industrial components.

Specification Summary & Compliance

This screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. It is manufactured to comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for global industrial use without hazardous substances.