S-91244A544 1/4"-20 x 1 1/4" Plastic Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance thanks to nylon construction, eliminating rust concerns in harsh environments
• Excellent electrical insulation properties for safe use in electrical assemblies and sensitive equipment
• Easy installation with external hex drive providing secure tool engagement and reduced stripping risk
• Wide temperature tolerance from -40° to 185°F for reliable performance across diverse operating conditions
• RoHS 3 compliance ensuring environmental safety and meeting international regulatory standards
• Class 2A thread fit precision delivering consistent engagement and reliable fastening performance
• Partially threaded design allowing for controlled clamping force and precise joint compression

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these nylon hex head screws provide critical solutions where metal fasteners fail. The off-white nylon material offers inherent corrosion resistance, making them ideal for marine applications, chemical processing equipment, and outdoor installations where moisture and corrosive elements are present. Their excellent electrical insulation properties make them the preferred choice for electrical enclosures, control panels, and electronic assemblies where current isolation is essential. The UNC coarse threading ensures quick assembly and reliable holding power in plastic and soft materials, while the external hex drive allows for high-torque installation without compromising the fastener integrity. These characteristics combine to deliver long-term reliability in applications ranging from automotive components to food processing equipment.

Specification Summary & Compliance

This 1/4"-20 x 1-1/4" nylon hex head screw features UNC coarse threading with Class 2A thread fit for precise dimensional accuracy and reliable engagement. The fastener meets RoHS 3 (2015/863/EU) compliance standards, ensuring environmental safety and regulatory adherence. Manufacturing follows industry standards for plastic fasteners with consistent thread spacing and dimensional stability. The partially threaded design provides optimal clamping performance while maintaining structural integrity across the specified temperature range of -40° to 185°F.