S-98885A102 4-40 x 1/4" 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 temperature resistance from -50° to 500°F for reliable performance in extreme thermal environments
- High tensile strength of 25,000 psi provides superior load-bearing capability compared to standard plastic fasteners
- PEEK plastic construction offers excellent chemical resistance and maintains dimensional stability under stress
- UL 94 V-0 flammability rating ensures fire safety compliance for sensitive applications
- Class 2A thread fit with UNC coarse threading delivers secure, vibration-resistant connections
- 3/32" hex drive socket head enables easy installation and removal in confined spaces
- RoHS 3 and REACH compliance guarantees environmental regulatory adherence for global supply chains
Professional Applications & Engineering Value
These PEEK plastic socket head cap screws solve critical engineering challenges in demanding environments where metal fasteners fail. The high-temperature PEEK material maintains structural integrity from -50° to 500°F, preventing thermal deformation in aerospace, automotive, and electronics applications. The 4-40 UNC coarse threading with Class 2A fit provides superior vibration resistance in machinery and equipment subject to constant motion. As chemical-resistant fasteners, they outperform metals in corrosive processing environments while the fully threaded design ensures maximum grip strength. The beige color and UL 94 V-0 rating make them ideal for electrical enclosures and flame-retardant assemblies where safety and visibility are paramount.
Specification Summary & Compliance
This socket head cap screw features precise 4-40 UNC coarse threading with Class 2A fit per ASME B18.3 specifications. The 1/4" length and 3/32" hex drive provide standardized dimensions for consistent installation. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, while meeting UL 94 V-0 flammability standards for enhanced safety in electrical and industrial applications.
