S-91345A646 5/8"-11 x 3" Fiberglass Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance due to high-performance fiberglass construction, ideal for harsh industrial environments
• Excellent temperature stability with a broad operating range from -60° to 190°F for reliable performance in varying conditions
• Easy installation and removal with external hex drive and standard 15/16" head width for common tool compatibility
• Secure and precise fit ensured by Class 2A thread fit and UNC coarse threading, reducing cross-threading risks
• Maximum holding power from fully threaded 3" length design, providing consistent engagement along the entire fastener
• Environmental compliance with RoHS 3 standards, meeting strict regulatory requirements for industrial applications
• Durable gray fiberglass material offering long-lasting performance without metallic corrosion concerns

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these fiberglass hex head screws provide exceptional value in applications where corrosion resistance and electrical insulation are critical. The 5/8"-11 UNC coarse thread configuration ensures rapid installation and reliable performance in composite materials, plastics, and wood assemblies. The gray fiberglass construction maintains dimensional stability across temperature fluctuations from -60° to 190°F, making these external hex drive screws ideal for chemical processing equipment, marine applications, electrical enclosures, and outdoor structures. The fully threaded design maximizes pull-out resistance while the Class 2A thread fit guarantees consistent engagement without compromising assembly integrity.

Specification Summary & Compliance

This hex head screw features precise UNC coarse threading with Class 2A thread fit tolerance for reliable assembly performance. The fastener maintains dimensional accuracy with a 5/8"-11 thread size, 3" length, and 15/16" head width for standardized installation. Manufacturing complies with RoHS 3 (2015/863/EU) environmental regulations, ensuring restriction of hazardous substances in industrial applications. The right-hand thread direction and external hex drive configuration adhere to industry-standard fastener specifications for consistent performance across various assembly requirements.