S-99091A550 1/4"-20 x 2" Plastic Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance ensures long-lasting performance in harsh environments without rust or degradation
• Excellent electrical insulation properties prevent current conduction for enhanced safety in electrical applications
• Wide temperature tolerance from -40°F to 185°F maintains structural integrity across diverse operating conditions
• Class 2A thread fit provides reliable engagement and consistent fastening performance
• External hex drive design enables quick installation and removal with standard tools
• RoHS 3 compliance meets environmental regulations for restricted substances
• Full threading offers maximum grip strength and uniform load distribution

Professional Applications & Engineering Value

This black nylon hex head screw delivers exceptional value in applications where metal fasteners would compromise performance. The nylon plastic construction provides inherent corrosion resistance, eliminating galvanic corrosion concerns when mating with dissimilar metals and making it ideal for marine, chemical processing, and outdoor applications. The material's natural electrical insulation properties make these UNC coarse thread screws perfect for electrical enclosures, control panels, and electronic assemblies where current isolation is critical. The external hex drive combined with Class 2A thread fit ensures reliable installation torque and vibration resistance in industrial machinery, automotive components, and HVAC systems. With temperature resistance spanning -40°F to 185°F, these screws maintain dimensional stability across extreme environmental conditions.

Specification Summary & Compliance

This 1/4-20 x 2" black nylon hex head screw features UNC coarse threading with Class 2A thread fit for consistent dimensional accuracy. The fastener is fully threaded with right-hand thread direction and complies with RoHS 3 (2015/863/EU) environmental regulations. Manufactured to precise specifications including 3/8" head width and 3/16" head height, this industrial nylon fastener delivers reliable performance while meeting stringent compliance requirements.