S-91345A684 1/4"-20 x 3/4" Fiberglass Flanged Hex Head Screws
Fiberglass Flanged Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with fiberglass construction, eliminating rust issues in harsh environments
- Excellent thermal stability maintaining performance across -60° to 190°F temperature ranges
- Enhanced installation efficiency with external hex drive design for secure tool engagement
- Improved load distribution through integrated flange design, reducing surface damage
- Maximum gripping strength with fully threaded shank for superior holding power
- Reliable thread engagement with Class 2A UNC coarse threads for quick assembly
- Environmental compliance meeting RoHS 3 standards for regulated applications
Professional Applications & Engineering Value
This fiberglass hex head screw delivers exceptional value in industrial applications where metal fasteners fail. The gray fiberglass material provides inherent corrosion resistance, making it ideal for chemical processing, marine environments, and electrical installations where galvanic corrosion is a concern. The UNC coarse thread design ensures rapid installation and reliable performance in vibration-prone applications, while the flanged design eliminates the need for separate washers, reducing assembly time and component count. With full threading along the entire 3/4" length, engineers achieve maximum clamp load distribution in composite materials, plastics, and wooden structures where pull-out resistance is critical.
Specification Summary & Compliance
This 1/4"-20 x 3/4" hex head screw features precision Class 2A thread fit according to UNC standards, ensuring consistent engagement and reliable performance. The right-hand thread direction with coarse thread spacing provides optimal installation efficiency. Manufacturing complies with RoHS 3 (2015/863/EU) regulations, guaranteeing environmental safety for electronic and industrial applications. The external hex drive with 3/8" head width and 9/32" head height delivers secure tool mating for torque transmission.
