S-91221A182 10-32 x 1 1/4" UL 94 HB Plastic Socket Head Screws

Key Features & Benefits at a Glance

• Corrosion-resistant glass-filled nylon construction ensures long-lasting performance without rust or degradation in humid or chemical environments.
• Wide operating temperature range (-20°F to 230°F) provides reliable fastening in both cold and high-heat industrial settings.
• Class 2A thread fit with 10-32 UNF fine threading delivers precise, secure engagement and vibration resistance in machinery assemblies.
• Hex socket drive (5/32") design allows for easy installation with standard tools while maintaining a low-profile, flush head appearance.
• Full threading along the 1 1/4" length offers maximum adjustability and holding power across the entire fastener.
• Compliance with UL 94 HB, RoHS 3, and REACH standards guarantees safety, environmental responsibility, and suitability for regulated industries.
• Lightweight yet durable plastic material reduces overall assembly weight without sacrificing strength, ideal for non-magnetic or insulating applications.

Professional Applications & Engineering Value

Engineered for demanding settings, these glass-filled nylon socket head cap screws solve common industrial challenges like electrical insulation, chemical exposure, and weight reduction. The 10-32 UNF fine thread and Class 2A fit ensure tight, reliable connections in precision equipment, reducing the risk of loosening under vibration. With a temperature tolerance from -20°F to 230°F, they perform consistently in automotive, electronics, and packaging machinery. The black color and socket head design provide a professional finish while the hex drive simplifies maintenance. Ideal for plastic fastening assemblies where metal alternatives could cause galvanic corrosion or interference.

Specification Summary & Compliance

This screw adheres to inch system measurements with a 1 1/4" length and fully threaded rod type. Thread specifications include 10-32 UNF fine thread, right-hand direction, and Class 2A thread fit for consistent dimensional accuracy. It meets UL 94 HB for flammability resistance, RoHS 3 (2015/863/EU) for hazardous substance restriction, and REACH (EC 1907/2006) compliance, ensuring it is safe for industrial and consumer applications.