S-99091A197 8-32 x 3/4" Plastic Hex Head Screws

Key Features & Benefits at a Glance

• Corrosion-free performance with durable nylon plastic construction for long-lasting reliability in humid or chemical environments
• Wide temperature tolerance from -40°F to 185°F maintains integrity in varied operating conditions
• Precise Class 2A thread fit ensures smooth installation and secure fastening with reduced cross-threading risk
• External hex head design with 1/4" width provides excellent torque transmission using standard tools
• RoHS 3 compliance guarantees environmental safety and regulatory acceptance for global applications
• Coarse UNC threading delivers superior holding power in plastic and soft materials
• Lightweight nylon material reduces overall assembly weight while providing electrical insulation

Professional Applications & Engineering Value

These nylon plastic hex head screws solve critical engineering challenges where metal fasteners fail. The 8-32 UNC coarse thread configuration provides exceptional pull-out resistance in plastic housings, electronic enclosures, and composite materials. Unlike metallic alternatives, these black nylon screws eliminate galvanic corrosion risks when mating with dissimilar metals while providing inherent electrical insulation. The fully threaded design maximizes engagement depth, making them ideal for vibration-prone applications in automotive trim, electrical panels, and outdoor equipment. Their temperature resistance ensures reliable performance from freezing conditions to elevated temperatures encountered in industrial controls and consumer products.

Specification Summary & Compliance

Manufactured to inch system specifications with UNC coarse threads meeting Class 2A tolerance standards for consistent fit. Features right-hand threading with 3/4" length and 1/4" hex head dimensions. Fully compliant with RoHS 3 (2015/863/EU) environmental regulations, ensuring hazardous substance-free construction for global industrial applications.