S-91345A666 3/4"-10 x 3" Fiberglass Hex Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with fiberglass construction, ideal for harsh chemical or marine environments where metal fasteners would degrade
• Reliable electrical insulation properties for applications requiring non-conductive components and enhanced safety
• Excellent temperature stability maintaining performance across a wide range from -60°F to 190°F without compromising integrity
• Optimized coarse threading (UNC) provides faster installation and superior holding power in softer materials or where vibration is a concern
• Secure external hex drive enables high-torque application with standard tools, preventing stripping and ensuring tight fastening
• Precision Class 2A thread fit guarantees consistent, reliable engagement with mating components for vibration-resistant assemblies
• Environmentally compliant manufacturing meeting RoHS 3 standards for restricted substances, supporting sustainable procurement initiatives

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these fiberglass hex head screws solve critical challenges where metal fasteners fail. The gray fiberglass material provides inherent resistance to corrosion, UV exposure, and electrical conductivity, making them ideal for electrical enclosures, chemical processing equipment, and marine structures. The 3/4"-10 UNC coarse thread design ensures rapid installation and maintains grip in materials prone to stress cracking. With partial threading and external hex drive, these screws deliver precise clamp load control and withstand high torque during assembly, preventing joint failure in vibration-intensive environments while operating reliably across extreme temperature ranges.

Specification Summary & Compliance

This 3/4"-10 UNC coarse thread hex head screw features Class 2A thread fit per ANSI/ASME B1.1 standards, ensuring dimensional accuracy and interchangeability. Manufactured in the inch system with a 3" length and partial threading (minimum 2 1/4" thread length). Compliant with RoHS 3 (2015/863/EU) regulations, containing no restricted hazardous substances for environmentally conscious industrial applications.