S-91345A688 1/4"-20 x 1" Fiberglass Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Corrosion-resistant fiberglass construction ensures long-term reliability in harsh environments without rust or degradation
• Flanged design eliminates need for separate washers, reducing assembly time and component count
• Class 2A thread fit provides consistent engagement for secure fastening with standard mating components
• Wide temperature tolerance (-60° to 190°F) maintains performance in both extreme cold and high-heat applications
• External hex drive with 3/8" head width delivers superior torque transmission and tool accessibility
• Coarse UNC threading enables rapid installation while resisting vibration-induced loosening
• RoHS 3 compliance guarantees environmental safety for regulated industrial and commercial applications

Professional Applications & Engineering Value

These fiberglass hex head screws address critical challenges in chemical processing, electrical enclosures, and marine applications where metal fasteners would corrode or conduct electricity. The gray fiberglass material provides excellent dielectric properties while maintaining structural integrity across wide temperature fluctuations. The flanged design with full UNC threading distributes clamping force evenly, preventing material damage in composite assemblies. With their external hex drive and coarse 1/4-20 thread spacing, these screws deliver rapid installation in high-volume production environments while meeting RoHS 3 compliance for global manufacturing standards.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit standards with UNC coarse threading (1/4"-20) and consistent right-hand thread direction. Features include 1" length, 9/16" flange diameter, and full threading for maximum engagement. Compliant with RoHS 3 (2015/863/EU) environmental regulations, ensuring safe use in industrial applications requiring hazardous substance restrictions.