S-91221A155 8-32 x 1" ASME B18.3, UL 94 HB Plastic Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 17,000 psi ensures reliable performance in demanding applications
• Wide temperature resistance from -40° to 200°F maintains integrity across various operating environments
• Chemical resistance and electrical insulation properties make it ideal for sensitive industrial settings
• Precise Class 2A thread fit guarantees secure fastening and consistent assembly quality
• Glass-filled nylon construction provides superior durability while remaining lightweight
• Standard hex drive compatibility with 9/64" drive size enables easy installation and removal
• Full thread coverage along the 1" length offers maximum engagement and holding power

Professional Applications & Engineering Value

Engineered for industrial environments where metal fasteners pose conductivity or corrosion risks, these glass-filled nylon socket head cap screws deliver optimal performance in electrical assemblies, chemical processing equipment, and food-grade machinery. The 8-32 UNC coarse thread design ensures rapid installation while maintaining vibration resistance, while the black glass-filled nylon material provides excellent dimensional stability under thermal cycling. The socket head design with hex drive allows for high-torque applications in confined spaces, making these screws ideal for precision equipment requiring both electrical insulation and chemical resistance without compromising mechanical strength.

Specification Summary & Compliance

Manufactured to ASME B18.3 standards with Class 2A thread fit tolerance for consistent threading performance. Features 8-32 UNC coarse threads with full threading along the 1" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries including electronics, automotive, and industrial machinery applications.