S-91297A542 1/4"-20 x 1" Plastic Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional temperature resistance from -100°F to 500°F, ensuring reliable performance in extreme thermal environments without degradation
• Superior chemical and corrosion resistance due to PTFE plastic construction, ideal for harsh industrial and laboratory settings
• Easy installation and removal with external hex drive design, allowing standard tools for quick assembly and maintenance
• Maximum holding power and stability through fully threaded design, providing consistent grip along the entire 1" length
• Precise thread engagement with Class 2A fit and UNC coarse threads, reducing cross-threading risks and ensuring secure fastening
• Compliance with environmental regulations including RoHS 3 and REACH, supporting sustainable and safe industrial practices
• Lightweight and non-conductive properties of white PTFE plastic, preventing electrical interference and reducing overall system weight

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 1/4"-20 UNC PTFE plastic hex head screws deliver critical advantages in applications where metal fasteners fail. The PTFE material offers inherent resistance to chemicals, solvents, and moisture, preventing corrosion and contamination in chemical processing, pharmaceutical, and food equipment. With a broad temperature range of -100°F to 500°F, they maintain structural integrity in autoclaves, ovens, and cryogenic systems. The fully threaded design and coarse UNC threads ensure vibration resistance and easy alignment, reducing installation errors. External hex drive facilitates high-torque application using standard wrenches, streamlining maintenance in tight spaces. Ideal for electrical enclosures, these screws provide insulation and are RoHS and REACH compliant, meeting stringent industry standards for safety and environmental responsibility.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC coarse thread with Class 2A thread fit for consistent dimensional accuracy and reliable mating. Manufactured from white PTFE plastic with a hex head (3/16" height, 7/16" width) and fully threaded 1" length. Complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to hazardous substance restrictions and environmental safety protocols for industrial use.