S-91345A699 3/8"-16 x 7/8" Fiberglass Flanged Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with fiberglass construction, ideal for harsh chemical and marine environments where metal fasteners fail
• Reliable high-temperature performance maintaining structural integrity from -60°F to 190°F without degradation
• Enhanced load distribution through integrated flange design, reducing surface pressure and preventing material damage
• Quick installation and secure fit with coarse UNC threading and Class 2A tolerance for vibration-resistant assemblies
• Full-thread engagement maximizing grip strength and pull-out resistance across the entire 7/8" length
• Industry-standard compatibility with external hex drive tools for efficient maintenance and disassembly
• Environmental compliance assurance meeting RoHS 3 standards for restricted substance control

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these fiberglass hex head screws solve critical challenges where metal fasteners corrode or conduct electricity. The gray fiberglass material provides inherent resistance to rust, chemicals, and UV exposure, making them perfect for electrical enclosures, chemical processing equipment, and marine hardware. The flanged design eliminates the need for separate washers while distributing clamping force evenly across surfaces. With fully threaded UNC coarse spacing and Class 2A thread fit, these screws deliver rapid installation and maintain secure connections in high-vibration environments. The external hex drive ensures compatibility with standard industrial tools, streamlining maintenance operations in tight spaces.

Specification Summary & Compliance

Precision-manufactured to UNC thread standards with Class 2A thread fit for consistent engagement and reliable torque performance. Dimensions include 3/8"-16 thread size, 7/8" length, 9/16" head width, and 51/64" flange diameter. Fully compliant with RoHS 3 (2015/863/EU) regulations for hazardous substance restrictions, ensuring environmental safety in industrial applications.