S-98885A202 2-56 x 1/2" ASME B18.3, UL 94 V-0 Plastic Socket Head Screws

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 provides superior mechanical performance compared to standard plastic fasteners
• UL 94 V-0 flammability rating ensures fire safety compliance for critical applications
• Chemical and corrosion resistance inherent to PEEK material prevents degradation in harsh industrial environments
• Precision Class 2A thread fit guarantees consistent mating and reliable assembly performance
• 5/64" hex drive socket design enables secure tool engagement and controlled torque application
• Environmental compliance with RoHS 3 and REACH regulations for global market acceptance

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these PEEK plastic socket head cap screws solve critical challenges in high-temperature and chemically aggressive applications. The 2-56 UNC coarse threads with Class 2A fit provide reliable fastening in plastic, composite, and metal assemblies where thermal expansion differentials can compromise joint integrity. The beige PEEK material maintains dimensional stability across the full -50°F to 500°F temperature range, eliminating the risk of thermal deformation that plagues conventional plastic fasteners. These fully threaded screws with standard socket head profile are ideal for electronics enclosures, medical devices, aerospace components, and semiconductor equipment where UL 94 V-0 compliance and chemical resistance are mandatory. The 5/64" hex drive ensures positive tool engagement for precise installation in confined spaces.

Specification Summary & Compliance

These socket head cap screws feature 2-56 UNC coarse threads with precision Class 2A thread fit and right-hand thread direction. Manufactured to ASME B18.3 specifications, they ensure dimensional accuracy and interchangeability. The components are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, containing no restricted substances. UL 94 V-0 certification validates their flame-retardant properties for safety-critical applications across various industries.