S-94613A113 4-40 x 3/4" Plastic Hex Head Screws

Key Features & Benefits at a Glance

• Corrosion-resistant nylon construction eliminates rust and galvanic corrosion in sensitive environments
• Excellent electrical insulation properties prevent current conduction in electrical assemblies
• Wide temperature tolerance (-40° to 185°F) maintains performance across diverse operating conditions
• External hex drive design provides secure tool engagement and prevents stripping during installation
• Class 2A thread fit with UNC coarse threading ensures reliable engagement and faster assembly times
• Full threading along 3/4" length offers maximum grip strength and adjustment flexibility
• RoHS 3 compliance meets international environmental standards for restricted substances

Professional Applications & Engineering Value

These nylon plastic hex head screws deliver exceptional value in applications where metal fasteners would compromise performance. The off-white nylon material provides excellent chemical resistance against oils, solvents, and fuels while preventing electrical conductivity - making them ideal for electrical enclosures, control panels, and marine components. The 4-40 UNC coarse thread configuration ensures rapid installation and reliable holding power in plastic assemblies, while the external hex drive allows for high-torque installation without damaging the fastener head. Engineered to maintain dimensional stability across temperature ranges from -40° to 185°F, these screws solve common industrial challenges including weight reduction, corrosion prevention, and electrical isolation requirements.

Specification Summary & Compliance

This 4-40 UNC nylon hex head screw features precise Class 2A thread fit tolerances according to Unified Thread Standard specifications. The fastener maintains dimensional accuracy with 0.112" thread diameter, 3/4" length, and coarse thread spacing for optimal performance. Manufacturing complies with RoHS 3 (2015/863/EU) regulations, ensuring environmental compliance for industrial applications. The combination of right-hand thread direction and fully threaded design provides consistent performance across assembly operations.