S-91970A755 5/8"-11 x 2" Plastic Hex Head Screws

Key Features & Benefits at a Glance

• Non-conductive and corrosion-resistant nylon construction ensures safe, reliable performance in electrical and chemical environments
• Wide temperature tolerance from -40° to 185°F maintains structural integrity in diverse operating conditions
• External hex drive design with 15/16" head width provides secure, high-torque installation using standard tools
• Class 2A thread fit with UNC coarse threading delivers consistent, reliable engagement and faster assembly
• RoHS 3 compliance guarantees environmental safety and regulatory acceptance for global applications
• Partial threading configuration optimizes clamping force distribution for superior joint security
• Lightweight plastic construction reduces overall system weight while maintaining mechanical strength

Professional Applications & Engineering Value

These 5/8"-11 UNC nylon hex head screws solve critical challenges in electrical enclosures, marine equipment, and food processing machinery where metal fasteners cause galvanic corrosion or conductivity issues. The black nylon plastic material provides excellent chemical resistance while the coarse thread design ensures reliable performance in vibration-prone applications. With external hex drive compatibility, maintenance teams can achieve proper torque values using standard tools, reducing installation time and improving workplace safety. The temperature-resistant properties make these fasteners ideal for outdoor equipment and automotive components exposed to seasonal temperature fluctuations, while the partially threaded design concentrates clamping force precisely where needed for optimal mechanical performance.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with Class 2A thread fit tolerance per UNC standards, ensuring interchangeability and reliable performance. The 5/8"-11 UNC coarse thread configuration provides optimal engagement in plastic and soft materials. These fasteners feature a 15/16" hex head width with 7/16" head height for standard tool compatibility. Fully compliant with RoHS 3 (2015/863/EU) environmental regulations, containing no restricted hazardous substances. The 2" length with 1 1/2" minimum thread length offers versatile application coverage while maintaining structural integrity across the specified temperature range.