S-99091A194 8-32 x 1/2" Plastic Hex Head Screws

Key Features & Benefits at a Glance

• Excellent chemical resistance for reliable performance in harsh industrial environments without corrosion or degradation.
• Effective electrical insulation properties prevent electrical conductivity, making them ideal for electronic assemblies and applications requiring isolation.
• Wide operating temperature range from -40°F to 185°F ensures consistent performance in both cold and moderate heat conditions.
• Durable black nylon plastic construction offers lightweight strength and resistance to many chemicals, reducing part weight without sacrificing integrity.
• External hex drive with hex head design allows for easy installation and removal using standard tools, improving assembly efficiency.
• Class 2A thread fit with UNC coarse threading provides secure, reliable fastening with good engagement and vibration resistance in various materials.
• RoHS 3 compliance ensures environmental safety and meets regulatory standards for hazardous substance restrictions.

Professional Applications & Engineering Value

These 8-32 UNC nylon plastic hex head screws are engineered to address common industrial challenges where metal fasteners fall short. The nylon plastic material inherently resists corrosion from chemicals, moisture, and salts, eliminating the risk of galvanic corrosion when used with dissimilar metals. This makes them perfect for electrical insulation applications, such as in control panels, wiring harnesses, and electronic enclosures, where preventing short circuits is critical. The coarse UNC thread and Class 2A thread fit ensure quick assembly and strong holding power in plastics and soft materials, reducing stripping and improving reliability. With a temperature range of -40° to 185° F, they perform consistently in outdoor, automotive, and HVAC systems, offering a lightweight, non-conductive alternative that simplifies maintenance and enhances safety in sensitive environments.

Specification Summary & Compliance

This product adheres to UNC coarse thread standards with a Class 2A thread fit for consistent dimensional accuracy and reliable engagement. Manufactured to precise specifications including 8-32 thread size, 1/2" length, and external hex drive, it meets industry requirements for plastic fasteners. Compliance with RoHS 3 (2015/863/EU) is confirmed, ensuring the absence of restricted hazardous substances, and the screw is suitable for use in systems following inch measurement standards.