S-91345A636 3/8"-16 x 3" Fiberglass Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with fiberglass construction, eliminating rust concerns in harsh industrial environments
• Excellent electrical insulation properties for safe use in electrical applications where conductivity must be avoided
• Wide temperature tolerance from -60° to 190°F maintains structural integrity across extreme thermal conditions
• Maximum torque transmission through external hex drive design ensures secure fastening without stripping
• Precise Class 2A thread fit provides consistent engagement and reliable performance in assembly operations
• RoHS 3 compliance meets environmental regulations for restricted substances in industrial applications
• Coarse UNC threading enables quick installation and superior holding power in various materials

Professional Applications & Engineering Value

These fiberglass hex head screws deliver critical engineering advantages where metal fasteners fail. The gray fiberglass material provides inherent corrosion resistance without additional coatings, making them ideal for chemical processing, marine, and outdoor applications. Their electrical insulation properties prevent current conduction, essential in electrical enclosures, utility equipment, and electronic assemblies. The 3/8"-16 UNC coarse thread configuration ensures rapid installation and strong holding power in composite materials, plastics, and wood. With partial threading and external hex drive, these screws offer optimal clamp load distribution and high-torque capability, solving vibration loosening and galvanic corrosion issues common in mixed-material applications.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit standards with UNC coarse threading (3/8"-16) and partial threading configuration. These fiberglass screws feature a 9/16" hex head width with 1/4" head height for standard tool compatibility. The 3" length with minimum 2" thread length provides versatile fastening capability. Fully compliant with RoHS 3 (2015/863/EU) regulations, ensuring environmental safety and restricted substance control for industrial applications.