S-91345A628 3/8"-16 x 1 1/2" Fiberglass Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance due to fiberglass construction, ideal for harsh environments without rust or degradation
• Reliable thermal stability across a wide temperature range from -60°F to 190°F, ensuring consistent performance in varying conditions
• High torque application capability with external hex drive and hex head design, allowing for secure, easy installation with standard tools
• Precise thread engagement with UNC coarse threads and Class 2A fit, providing strong, vibration-resistant fastening in industrial assemblies
• Full threading along the 1-1/2" length for maximum grip and adjustability in diverse material thicknesses
• RoHS 3 compliance ensuring environmental safety and meeting stringent regulatory standards for industrial and commercial use
• Lightweight yet durable fiberglass material reduces overall weight while maintaining structural integrity in demanding applications

Professional Applications & Engineering Value

These fiberglass hex head screws with 3/8"-16 UNC coarse threads are engineered to address common industrial challenges such as corrosion in chemical processing, electrical insulation needs, and thermal cycling in HVAC systems. The gray fiberglass material inherently resists moisture, chemicals, and UV exposure, eliminating the risk of galvanic corrosion when used with dissimilar metals. Featuring an external hex drive, they enable high-torque installation without stripping, while the fully threaded design ensures uniform load distribution. Ideal for applications in marine, construction, and electronics, these screws provide long-term reliability where metal fasteners fail, reducing maintenance costs and downtime.

Specification Summary & Compliance

This screw adheres to UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy and ease of assembly. Manufactured in the inch system, it includes a 1/4" head height and 9/16" head width for standard tool compatibility. The product is fully compliant with RoHS 3 (2015/863/EU), ensuring it is free from hazardous substances, and is suitable for right-hand threading applications requiring precise, coarse-thread fastening in industrial settings.