S-91345A634 3/8"-16 x 2 1/2" Fiberglass Hex Head Screws

Key Features & Benefits at a Glance

• Corrosion-resistant fiberglass construction ensures long-term reliability in harsh environments without rust or degradation
• Wide temperature tolerance (-60° to 190°F) maintains structural integrity across extreme thermal conditions
• External hex drive design delivers superior torque transmission for secure fastening and easier installation
• Class 2A thread fit with UNC coarse threading provides reliable engagement and vibration resistance in industrial applications
• RoHS 3 compliance (2015/863/EU) meets international environmental standards for restricted substances
• Partially threaded shank design allows for precise clamping force distribution in assembled components
• Right-hand thread direction with coarse spacing enables quick assembly and disassembly in maintenance operations

Professional Applications & Engineering Value

These fiberglass hex head screws solve critical challenges in corrosive and electrically sensitive environments where metal fasteners would fail. The gray fiberglass material provides excellent chemical resistance while eliminating galvanic corrosion issues in mixed-material assemblies. With their UNC coarse threads and external hex drive, these screws deliver maximum torque efficiency in applications requiring frequent maintenance or adjustment. The partial threading ensures optimal stress distribution across joined components, making them ideal for construction, industrial equipment, and maintenance applications where thermal cycling and environmental exposure are concerns. Their non-conductive properties make them particularly valuable in electrical enclosures and utility applications.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread fit tolerance for consistent performance. Features UNC 3/8"-16 coarse threads with right-hand direction and partial threading configuration. Compliant with RoHS 3 (2015/863/EU) regulations for hazardous substance restrictions. The inch system measurements ensure compatibility with North American industrial standards, while the fiberglass construction meets demanding environmental requirements without compromising mechanical performance.