S-98885A221 3/8"-16 x 3/4" ASME B18.3, UL 94 V-0 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 thermal stability for reliable performance in extreme environments from -50°F to 500°F
- High tensile strength of 25,000 psi ensures secure fastening in demanding industrial applications
- Corrosion-resistant PEEK plastic construction eliminates rust concerns and maintains integrity in harsh conditions
- Precision Class 2A thread fit provides consistent engagement and reduces assembly issues
- Hex socket drive compatibility enables easy installation with standard tools while preventing stripping
- Comprehensive regulatory compliance including UL 94 V-0 flammability rating and RoHS/REACH environmental standards
- Coarse UNC thread design offers faster assembly and reduced cross-threading risks
Professional Applications & Engineering Value
Engineered for high-temperature environments where metal fasteners would fail, this PEEK plastic socket head cap screw solves critical challenges in aerospace, semiconductor, and chemical processing applications. The 3/8"-16 UNC coarse thread configuration ensures rapid installation while maintaining Class 2A precision fit for vibration resistance. As a fully threaded component with 25,000 psi tensile strength, it provides uniform clamping force across the entire 3/4" length. The beige PEEK material offers inherent corrosion resistance, electrical insulation, and maintains mechanical properties where thermal cycling would compromise metal alternatives. The hex drive socket head design accommodates standard industrial tools while the UL 94 V-0 rating ensures safety in potential fire scenarios.
Specification Summary & Compliance
This socket head cap screw features 3/8"-16 UNC coarse threads with Class 2A thread fit tolerance for precision engagement. Manufactured to ASME B18.3 specifications for dimensional consistency. Compliant with UL 94 V-0 flammability standards, RoHS 3 (2015/863/EU) for hazardous substance restrictions, and REACH (EC 1907/2006) regulations for chemical safety. The fully threaded design and standard socket head profile ensure compatibility with industrial applications requiring high-temperature plastic fasteners.
