S-91221A144 6-32 x 1" 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 tensile strength of 17,000 psi for reliable load-bearing performance in demanding assemblies.
- Wide temperature resistance from -40° to 200°F ensures dimensional stability and function in varied environments.
- Corrosion-resistant glass-filled nylon construction eliminates rust and galvanic corrosion, ideal for electrical or chemical-exposed applications.
- Precise Class 2A thread fit with UNC coarse threading enables quick assembly and secure fastening in plastics and soft materials.
- Standard hex socket drive (7/64") allows for high-torque installation with common tools, reducing slip and head stripping.
- Full compliance with ASME B18.3 and RoHS 3/REACH regulations ensures consistent quality and environmental safety.
- Lightweight and non-conductive properties reduce overall weight and prevent electrical shorts in sensitive equipment.
Professional Applications & Engineering Value
Engineered for precision and durability, this glass-filled nylon socket head cap screw solves critical challenges in industrial and electronic assemblies. The 6-32 UNC coarse thread design provides excellent pull-out resistance in plastic housings and sheet metal, while the Class 2A thread fit guarantees consistent engagement without cross-threading. Its black, corrosion-resistant material is ideal for outdoor, marine, or chemically aggressive settings where metal fasteners would fail. With a temperature range of -40° to 200°F, it maintains integrity in automotive, HVAC, and consumer electronics—offering a reliable, lightweight alternative to steel with 17,000 psi tensile strength for high-stress applications.
Specification Summary & Compliance
This screw features a 6-32 UNC coarse thread with Class 2A thread fit for standard tolerance and easy assembly. It is manufactured in compliance with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and regulatory adherence. The fully threaded design and 1" length provide uniform clamping force, backed by a 17,000 psi tensile strength rating for dependable performance.
