S-98885A215 1/4"-28 x 3/8" ASME B18.3, UL 94 V-0 Plastic Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional temperature performance maintains structural integrity from -50°F to 500°F for reliable operation in extreme thermal environments
• High tensile strength of 25,000 psi provides robust fastening capability comparable to many metal alternatives while remaining lightweight
• Inherent corrosion resistance eliminates rust concerns and reduces maintenance costs in harsh chemical or humid conditions
• Precision Class 2A thread fit ensures consistent engagement and reliable clamping force in critical assemblies
• UL 94 V-0 flammability rating offers superior fire safety for applications requiring reduced flame spread
• 3/16" hex drive socket head provides secure tool engagement and prevents stripping during installation
• Regulatory compliance meets RoHS 3, REACH, and ASME B18.3 standards for global market acceptance

Professional Applications & Engineering Value

These PEEK plastic socket head cap screws deliver exceptional engineering value in demanding applications where metal fasteners fail. The 1/4"-28 UNF fine thread configuration provides superior vibration resistance and precise tension control in high-temperature environments up to 500°F. The beige PEEK material offers excellent chemical resistance against fuels, solvents, and cleaning agents while maintaining dimensional stability across extreme temperature fluctuations. These industrial plastic fasteners are ideal for semiconductor equipment, aerospace components, medical devices, and food processing machinery where corrosion resistance, electrical insulation, and weight reduction are critical. The socket head design with 3/16" hex drive ensures reliable installation in confined spaces without compromising torque transmission.

Specification Summary & Compliance

This socket head cap screw features precision Class 2A thread fit with 1/4"-28 UNF fine thread spacing and standard socket head profile. Manufactured to ASME B18.3 specifications with complete regulatory compliance including RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements. The fastener carries UL 94 V-0 flammability certification and is designed with fully threaded rod type construction measuring 3/8" in length with 3/8" head diameter and 1/4" head height.