S-93939A758 1/4"-20 x 5/8" Plastic Fillister Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance eliminates rust concerns in humid or chemical environments
• Excellent electrical insulation properties prevent current leakage in electronic assemblies
• Wide temperature tolerance from -40° to 185°F ensures reliable performance across diverse operating conditions
• Class 2A thread fit provides consistent, reliable engagement with standard mating components
• RoHS 3 compliance meets international environmental standards for restricted substances
• Fully threaded design offers maximum holding power along the entire fastener length
• High, narrow fillister head profile allows for deeper tool engagement and improved torque transmission

Professional Applications & Engineering Value

These nylon plastic slotted screws with 1/4-20 UNC coarse threading solve critical engineering challenges in multiple industries. The nylon material provides inherent corrosion resistance, making these fasteners ideal for applications where metal screws would deteriorate from moisture, chemicals, or galvanic corrosion. The electrical insulation properties are essential for electronic enclosures, control panels, and electrical assemblies where current isolation is mandatory. The rounded fillister head design with 0.414" diameter offers a low-profile solution that combines aesthetic appeal with functional benefits, while the slotted drive style ensures compatibility with standard installation tools. These characteristics make these plastic fasteners particularly valuable in electrical equipment, marine environments, food processing machinery, and chemical handling systems where both performance and safety are paramount.

Specification Summary & Compliance

This 1/4-20 UNC screw features Class 2A thread fit per standard inch system requirements, ensuring proper clearance and reliable assembly. The coarse threading provides excellent engagement in various materials while the fully threaded design maximizes holding strength. Manufactured to meet RoHS 3 (2015/863/EU) compliance, these fasteners adhere to international environmental regulations restricting hazardous substances. The combination of precise dimensional control and material consistency ensures repeatable performance in industrial applications requiring temperature resistance from -40° to 185°F.