S-98885A126 1/4"-20 x 3/4" ASME B18.3, UL 94 V-0 Plastic Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional thermal stability with a wide operating range from -50° to 500° F, ideal for environments with extreme temperature fluctuations
• High tensile strength of 25,000 psi provides reliable fastening performance comparable to some metal alternatives in demanding applications
• Superior chemical resistance and electrical insulation properties of PEEK plastic prevent corrosion and short circuits in sensitive equipment
• UL 94 V-0 flammability rating ensures the material self-extinguishes, enhancing safety in electrical and high-heat environments
• Precise Class 2A thread fit with UNC coarse threading guarantees consistent engagement and easier assembly in industrial settings
• RoHS 3 and REACH compliance confirms environmental responsibility and unrestricted use in global markets
• Standard hex drive (3/16") and socket head design allows for secure tool engagement and streamlined installation with common tools

Professional Applications & Engineering Value

Engineered for challenging industrial environments, these PEEK plastic socket head cap screws deliver critical performance where metal fasteners fail. The beige PEEK material excels in chemical-resistant and electrical insulation applications, such as semiconductor manufacturing, aerospace components, and medical devices, by eliminating galvanic corrosion and leakage currents. With a 1/4"-20 UNC coarse thread and Class 2A fit, they ensure rapid, reliable assembly in vibration-prone systems. Their ability to withstand temperatures from -50° to 500° F makes them indispensable in thermal cycling equipment, while the 25,000 psi tensile strength supports structural integrity in high-stress industrial fastening without adding conductive or corrosive risks.

Specification Summary & Compliance

This fastener adheres to ASME B18.3 specifications for dimensional consistency and features a Class 2A thread fit with UNC coarse threads (1/4"-20) for standardized compatibility. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) ensures the product is free of hazardous substances, while the UL 94 V-0 rating certifies its flame-retardant properties for safe use in electrical and high-temperature applications.