S-92929A140 4-40 x 1" ASME B18.6.3 Plastic Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Corrosion-free performance in harsh environments thanks to durable Nylon plastic construction
• Secure flush mounting with standard 82° countersink angle for smooth, even surfaces
• Wide temperature resilience from -40°F to 185°F for stable operation in varying conditions
• Easy manual installation with slotted drive design requiring simple hand tools
• Reliable thread engagement through full threading and Class 2A fit for consistent fastening
• Industry-standard compatibility with UNC coarse threads matching common components
• Regulatory compliance assurance meeting ASME B18.6.3 and RoHS 3 for quality and safety

Professional Applications & Engineering Value

Engineered for precision fastening in electrical enclosures, consumer electronics, and food processing equipment, these Nylon plastic screws provide essential electrical insulation and chemical resistance where metal fasteners would fail. The flat head slotted design with 82° countersink creates seamless finishes in pre-drilled holes, while the 4-40 UNC coarse thread ensures rapid assembly and vibration resistance. Ideal for lightweight structural applications, they eliminate galvanic corrosion risks in mixed-material assemblies and maintain integrity across temperature variations from -40° to 185°F, offering a reliable non-conductive alternative for sensitive industrial environments.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications with Class 2A thread fit ensuring precise dimensional accuracy. Features right-hand UNC coarse threads (4-40 size) and full threading along the 1" length. Compliant with RoHS 3 (2015/863/EU) regulations for hazardous substance restrictions, making these screws suitable for global industrial and commercial applications requiring verified material safety standards.