S-91244A546 1/4"-20 x 1 1/2" Plastic Hex Head Screws

Key Features & Benefits at a Glance

• Corrosion-resistant nylon construction ensures long-lasting performance in harsh chemical and moisture-prone environments
• Electrical insulation properties prevent current conduction, making them ideal for electronic and electrical assemblies
• Wide temperature tolerance from -40°F to 185°F maintains structural integrity in varying thermal conditions
• External hex drive design provides secure tool engagement and efficient installation with standard wrenches
• Class 2A thread fit with UNC coarse threading delivers reliable fastening performance and quick assembly
• RoHS 3 compliance guarantees environmental safety and regulatory adherence for global manufacturing
• Partial threading configuration offers optimal grip strength for specific material thicknesses

Professional Applications & Engineering Value

These nylon hex head screws solve critical engineering challenges where metal fasteners fail. The off-white nylon plastic construction provides inherent corrosion resistance, eliminating galvanic corrosion issues in mixed-material assemblies and chemical processing equipment. The electrical insulation properties make them essential for electrical enclosures, control panels, and electronic devices where current isolation is mandatory. With UNC coarse threads and Class 2A thread fit, these screws ensure rapid installation and reliable holding power in plastics, composites, and soft metals. The external hex drive allows for high-torque application without stripping, while the 1/4"-20 thread size and 1-1/2" length provide versatility across industrial maintenance, automotive, and marine applications where weight reduction and non-conductivity are paramount.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with 1/4"-20 UNC coarse thread and Class 2A thread fit tolerance. Features partial threading with minimum 3/4" thread length and standard external hex drive with 7/16" head width. Fully compliant with RoHS 3 (2015/863/EU) environmental regulations, containing no restricted hazardous substances. Suitable for continuous service in -40°F to 185°F temperature range.