S-91244A626 3/8"-16 x 1 1/4" Plastic Hex Head Screws

Key Features & Benefits at a Glance

• Corrosion-resistant nylon plastic construction ensures reliable performance in humid or chemical environments without rust or galvanic corrosion
• Wide temperature tolerance (-40° to 185°F) maintains structural integrity across diverse operating conditions from freezing to elevated temperatures
• External hex drive design provides secure tool engagement and efficient installation with standard wrenching tools
• Class 2A thread fit with UNC coarse threading delivers consistent engagement and vibration resistance in various materials
• RoHS 3 compliance meets environmental regulations for safe use in sensitive applications
• Partially threaded shank design allows for precise clamping force control and secure fastening in assembly operations
• Off-white color and plastic composition offers electrical insulation properties and aesthetic compatibility with industrial equipment

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these nylon plastic hex head screws solve critical challenges where metal fasteners fail. The 3/8"-16 UNC coarse thread configuration provides excellent pull-out resistance in plastic assemblies, wood, and soft materials, while the external hex drive ensures reliable torque transmission without stripping. The partially threaded design concentrates engagement where needed, preventing material damage in delicate applications. Ideal for electrical enclosures, food processing equipment, and marine applications, these fasteners eliminate conductivity concerns and resist chemical degradation. The temperature-resistant nylon maintains dimensional stability from sub-zero conditions to near-boiling temperatures, ensuring consistent performance in automotive, HVAC, and outdoor equipment where thermal cycling occurs.

Specification Summary & Compliance

This hex head screw features precise UNC 3/8"-16 coarse threads with Class 2A thread fit tolerance for consistent engagement. The 1-1/4" length with 1" minimum thread length provides optimal fastening depth. Manufactured to industry standards for plastic fasteners, the product is fully RoHS 3 (2015/863/EU) compliant for environmental safety. The external hex drive with 9/16" head width ensures compatibility with standard tools while maintaining secure installation integrity.