S-91221A146 8-32 x 3/8" ASME B18.3, UL 94 HB Plastic Socket Head Screws
Plastic Socket Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional strength-to-weight ratio with 17,000 psi tensile strength, ideal for reducing component weight without sacrificing load-bearing capacity.
- Superior temperature resistance from -40° to 200°F, ensuring reliable performance in fluctuating thermal environments.
- Corrosion-free and electrically non-conductive due to glass-filled nylon construction, perfect for electrical and corrosive settings.
- Precise Class 2A thread fit for easy assembly and consistent engagement, minimizing cross-threading risks.
- Durable hex drive design with a 9/64" drive size, providing secure torque application and reduced tool slippage.
- Compliance with ASME B18.3 standards, ensuring dimensional accuracy and interchangeability in industrial assemblies.
- Environmentally responsible with RoHS 3 and REACH compliance, meeting global regulatory requirements.
Professional Applications & Engineering Value
Engineered for demanding applications, this 8-32 UNC thread socket head cap screw in glass-filled nylon plastic addresses common industrial challenges like corrosion, electrical isolation, and weight reduction. Its coarse thread spacing and Class 2A thread fit facilitate quick installation in plastics and soft metals, reducing assembly time. The black color and socket head profile allow for discreet, low-profile fastening in consumer electronics, automotive components, and machinery enclosures. With a temperature range of -40° to 200°F, it performs reliably in outdoor or thermally variable environments, while the 17,000 psi tensile strength ensures long-term durability under static loads.
Specification Summary & Compliance
This screw features a 3/8" length, UNC coarse thread with Class 2A fit for standard tolerance, and is manufactured to ASME B18.3 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to environmental and safety standards. The right-hand thread direction and fully threaded design provide consistent fastening performance across industrial applications.