S-92929A125 4-40 x 3/16" ASME B18.6.3 Plastic Slotted Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance for long-lasting performance in harsh environments without rust or degradation
• Excellent electrical insulation properties to prevent short circuits and ensure safe operation in electronic assemblies
• Wide operating temperature range from -40° to 185°F for reliable performance in varying thermal conditions
• Precision Class 2A thread fit ensuring smooth installation and secure fastening in UNC coarse thread applications
• 100° countersink angle design for flush mounting and reduced protrusion in flat head applications
• Fully threaded construction providing maximum grip and holding power along the entire screw length
• RoHS 3 and ASME B18.6.3 compliance guaranteeing environmental safety and meeting industry standards

Professional Applications & Engineering Value

Engineered for precision applications where electrical insulation and corrosion resistance are critical, these nylon plastic flat head screws solve common industrial challenges. The 4-40 UNC coarse thread configuration with Class 2A fit ensures reliable engagement in plastic and soft material assemblies, while the 100° countersink angle provides secure, flush mounting. Ideal for electrical enclosures, consumer electronics, and marine applications, these fully threaded screws maintain integrity across a broad temperature range from -40° to 185°F, eliminating galvanic corrosion concerns and providing durable fastening solutions without conductive risks.

Specification Summary & Compliance

This 4-40 UNC nylon plastic flat head screw features precision Class 2A thread fit with coarse thread spacing and right-hand thread direction. Manufactured to ASME B18.6.3 specifications with a standard flat head profile and 100° countersink angle. The fastener is RoHS 3 (2015/863/EU) compliant and operates within a temperature range of -40° to 185°F, meeting industry standards for quality and environmental safety.