S-94735A791 5/16"-18 x 1/2" ASME B18.6.3 Plastic Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Excellent corrosion resistance due to nylon plastic construction, ideal for humid or chemically exposed environments
• Broad temperature tolerance from -40°F to 185°F ensures reliable performance in varied operating conditions
• Superior electrical insulation properties prevent electrical conductivity, enhancing safety in electronic assemblies
• Lightweight yet durable nylon material reduces overall component weight without sacrificing strength
• Precise Class 2A thread fit provides consistent engagement and reliable fastening in UNC coarse thread applications
• Phillips No. 4 drive design offers secure tool engagement and efficient installation with standard drivers
• Fully threaded shank maximizes grip length and distribution of clamping force along the entire fastener

Professional Applications & Engineering Value

These nylon pan head screws deliver exceptional value in applications where metal fasteners would be problematic. The nylon plastic construction eliminates galvanic corrosion concerns when mating with dissimilar metals, while providing natural vibration resistance that helps maintain clamp load. The UNC coarse threading with Class 2A fit ensures quick installation and reliable performance in plastic assemblies, electrical enclosures, and HVAC components. The rounded pan head profile with Phillips drive provides a low-profile finish that's both aesthetically pleasing and functionally secure. These screws are particularly valuable in electrical applications where non-conductive properties are essential, and in food processing equipment where corrosion resistance and cleanability are paramount.

Specification Summary & Compliance

This 5/16"-18 x 1/2" nylon screw features UNC coarse threading with Class 2A thread fit tolerance for consistent performance. Manufactured to ASME B18.6.3 specifications, these fully threaded right-hand fasteners ensure dimensional accuracy and interchangeability. The product is RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental regulations for hazardous substance restrictions. The temperature range of -40°F to 185°F covers most industrial applications while maintaining material integrity and performance characteristics.