S-93939A719 4-40 x 5/8" Plastic Fillister Head Slotted Screws

Key Features & Benefits at a Glance

• Excellent corrosion resistance due to nylon plastic construction, ideal for humid or chemical environments without rust concerns.
• Secure and reliable fastening with Class 2A thread fit ensuring consistent engagement and reduced loosening risks.
• Wide temperature tolerance from -40°F to 185°F, maintaining integrity in varied operational conditions.
• Easy installation and removal with a slotted drive design, compatible with standard screwdrivers for quick maintenance.
• Enhanced aesthetic and functional design from the high-profile rounded fillister head, providing a flush finish and improved grip.
• Full threading along the 5/8" length for maximum holding power and versatility in different material thicknesses.
• Compliance with RoHS 3 regulations ensures environmental safety and meets global standards for hazardous substance restrictions.

Professional Applications & Engineering Value

This 4-40 UNC nylon plastic fillister head screw is engineered to address common industrial challenges such as electrical insulation, lightweight assembly, and corrosion-prone settings. The nylon material offers inherent non-conductivity and resistance to many chemicals, making it perfect for electrical enclosures, automotive components, and consumer electronics. Its coarse UNC threading and Class 2A fit provide quick, secure fastening with minimal cross-threading, while the slotted drive allows for straightforward manual adjustments. The high-profile rounded head distributes pressure evenly, reducing surface damage and ensuring a clean, professional appearance in visible applications.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a Class 2A thread fit for precise dimensional accuracy and reliable performance. It is fully threaded with a right-hand direction and complies with RoHS 3 (2015/863/EU) regulations, ensuring it is free from restricted hazardous substances. The product meets general industrial fastening requirements for plastic fasteners in various sectors.