S-91345A640 5/8"-11 x 1 1/2" Fiberglass Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance due to fiberglass construction, ideal for harsh chemical or marine environments
• Reliable performance across extreme temperatures from -60°F to 190°F, maintaining structural integrity
• Quick and secure installation with external hex drive and coarse UNC threading for faster assembly
• Precise thread engagement with Class 2A fit ensuring consistent, vibration-resistant connections
• Full threading along the 1-1/2" length provides maximum grip and adjustability in various material thicknesses
• RoHS 3 compliance guarantees environmentally safe manufacturing and use in regulated industries
• Lightweight yet durable fiberglass material reduces overall weight without sacrificing strength

Professional Applications & Engineering Value

Engineered for demanding settings, these fiberglass hex head screws solve critical issues in chemical processing, electrical enclosures, and marine equipment where metal fasteners fail. The gray fiberglass material inherently resists rust, galvanic corrosion, and UV degradation, eliminating maintenance headaches. With a coarse 5/8"-11 UNC thread and Class 2A fit, they ensure rapid installation and reliable hold in composites or soft metals, while the external hex drive allows high-torque application without stripping. Their thermal stability from -60°F to 190°F makes them perfect for outdoor or temperature-cycling environments, providing long-term reliability where thermal expansion is a concern.

Specification Summary & Compliance

This screw adheres to Unified National Coarse (UNC) thread standards with a precision Class 2A thread fit for consistent dimensional accuracy. It is fully threaded with a right-hand direction and manufactured to comply with RoHS 3 (2015/863/EU) regulations, ensuring it is free of hazardous substances for safe use in electronic and industrial assemblies.