S-91221A114 2-56 x 3/8" 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
- Superior chemical resistance for reliable performance in harsh industrial environments
- Wide temperature tolerance (-20° to 230° F) ensures stability across diverse operating conditions
- Glass-filled nylon construction provides excellent strength-to-weight ratio and durability
- Precise Class 2A thread fit guarantees consistent engagement and secure fastening
- 5/64" hex drive socket head enables easy installation with standard tools
- Full UNC coarse threading delivers rapid assembly and strong holding power
- Comprehensive compliance certification including UL 94 HB, RoHS 3, and REACH for regulatory peace of mind
Professional Applications & Engineering Value
These glass-filled nylon socket head cap screws solve critical engineering challenges in applications where metal fasteners fail. The 2-56 UNC coarse thread configuration provides excellent pull-out resistance while the off-white glass-filled nylon material offers inherent corrosion resistance, electrical insulation, and lightweight properties. Ideal for electrical enclosures, automotive components, and chemical processing equipment, these screws maintain dimensional stability across their -20° to 230° F operating range. The standard socket head profile with 5/64" hex drive ensures compatibility with common installation tools while preventing stripping common in plastic fasteners. Their fully threaded design maximizes engagement in various material thicknesses, making them versatile for prototyping and production assemblies alike.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with UNC coarse thread spacing and right-hand thread direction. These socket head cap screws comply with UL 94 HB flammability standards and meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The 2-56 thread size with 3/8" length and 9/64" head diameter ensures consistent performance across industrial applications.
