S-98885A134 5/16"-18 x 1" ASME B18.3, UL 94 V-0 Plastic Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional thermal stability for reliable performance in environments ranging from -50° to 500° F, reducing failure risks in temperature-fluctuating applications.
• High tensile strength of 25,000 psi ensures dependable load-bearing capacity in demanding mechanical assemblies.
• Superior chemical and corrosion resistance due to PEEK material and UL 94 V-0 rating, ideal for harsh or corrosive settings.
• Precise Class 2A thread fit with coarse UNC threading for easier assembly and consistent engagement in various materials.
• Standard hex socket drive (1/4") allows for secure, high-torque installation with common tools, minimizing stripping.
• Compliance with ASME B18.3, RoHS 3, and REACH guarantees adherence to industry standards and environmental safety regulations.
• Fully threaded design provides uniform clamping force and versatility across different joint thicknesses.

Professional Applications & Engineering Value

Engineered for demanding industrial and engineering environments, this PEEK plastic socket head cap screw addresses critical challenges in applications where metal fasteners fall short. Its high-temperature resistance and chemical inertness make it ideal for use in aerospace, automotive, and chemical processing equipment, preventing galvanic corrosion and maintaining integrity under thermal cycling. The coarse UNC thread and Class 2A fit ensure quick, reliable installation in plastics and soft metals, reducing assembly time and improving joint reliability. With a beige color and UL 94 V-0 flammability rating, it also supports safety in electrical enclosures and other regulated settings, offering a lightweight, non-conductive alternative without sacrificing 25,000 psi tensile strength.

Specification Summary & Compliance

This screw features a 5/16"-18 UNC coarse thread with Class 2A tolerance for consistent fit, and is manufactured to meet ASME B18.3 specifications. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety, and carries a UL 94 V-0 rating for flame resistance in applicable uses.