S-92929A207 5/16"-18 x 1 1/4" ASME B18.6.3 Plastic Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Corrosion-free performance with durable nylon plastic construction, ideal for humid or chemical environments
• Precise flush mounting thanks to the 82° countersink angle and flat head design for smooth surface finishes
• Reliable thread engagement with UNC coarse threading and Class 2A fit, ensuring secure fastening in plastic assemblies
• Broad temperature resilience from -40°F to 185°F, maintaining integrity in varied operating conditions
• Easy manual installation using standard slotted drive, compatible with common hand tools
• Full-length threading for maximum grip along the entire 1-1/4" length, enhancing load distribution
• Regulatory compliance with RoHS 3 and REACH, supporting global supply chain requirements

Professional Applications & Engineering Value

Engineered for electrical enclosures, marine components, and food processing equipment, this nylon plastic flat head screw eliminates galvanic corrosion when mating with dissimilar metals. The UNC coarse thread and Class 2A fit provide vibration resistance in plastic assemblies, while the 82° countersink ensures seamless panel integration. Its temperature range (-40°F to 185°F) and non-conductive properties make it indispensable in HVAC systems and electronic housings where thermal stability and electrical insulation are critical.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications with UNC 5/16"-18 threads and Class 2A tolerance for consistent dimensional accuracy. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety. Features standard right-hand coarse threading and fully threaded 1-1/4" length for uniform stress distribution.