S-98885A212 1/4"-20 x 1 3/4" 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 ranging from -50° to 500° F
• High tensile strength of 25000 psi ensures secure, durable fastening in demanding mechanical assemblies
• Superior chemical and corrosion resistance thanks to PEEK plastic material, ideal for harsh industrial settings
• Excellent electrical insulation properties prevents current leakage and enhances safety in electrical applications
• Precision Class 2A thread fit guarantees consistent engagement and reduces the risk of cross-threading
• Flame-retardant UL 94 V-0 compliance provides added safety in high-risk environments
• Easy installation with standard hex drive allows for quick assembly using common 3/16" tools

Professional Applications & Engineering Value

Engineered for challenging conditions, these PEEK plastic socket head cap screws deliver outstanding performance where metal fasteners fail. The 1/4"-20 UNC coarse threads and Class 2A thread fit ensure precise, vibration-resistant connections in equipment subjected to thermal cycling and chemical exposure. With a beige color and fully threaded design, they are ideal for high-temperature applications in aerospace, automotive, and electronics—providing electrical insulation and resisting degradation from fuels, solvents, and steam. Their hex drive and socket head facilitate tight spaces and high-torque installation, reducing assembly time while maintaining integrity under 25000 psi tensile loads.

Specification Summary & Compliance

This 1/4"-20 UNC screw adheres to ASME B18.3 specifications, with a Class 2A thread fit for consistent dimensional accuracy. It meets UL 94 V-0 for flame retardancy, RoHS 3 (2015/863/EU) for restricted hazardous substances, and REACH (EC 1907/2006) compliance, ensuring environmental and safety standards are upheld in industrial and electronic assemblies.