S-97263A714 4-40 x 1/4" Plastic Round Head Slotted Screws

Key Features & Benefits at a Glance

• Corrosion-resistant nylon plastic construction ensures long-term reliability in humid or chemically exposed environments without rust or degradation.
• Wide temperature tolerance from -40°F to 185°F maintains structural integrity and performance in both freezing and elevated temperature applications.
• Class 2A thread fit with UNC coarse threading provides easy, quick assembly and secure fastening with reduced cross-threading risks.
• Slotted drive rounded head design allows for straightforward installation with standard tools while offering a low-profile, snag-resistant finish.
• RoHS 3 compliance supports environmentally responsible manufacturing and use in regulated electronics and consumer products.
• Fully threaded 1/4" length delivers consistent holding power along the entire fastener for uniform load distribution.
• Lightweight and non-conductive properties make it ideal for electrical insulation and weight-sensitive assemblies.

Professional Applications & Engineering Value

Engineered for precision and durability, these 4-40 UNC nylon plastic screws address common industrial challenges such as galvanic corrosion, electrical isolation, and weight reduction. The rounded head with slotted drive facilitates quick installation in tight spaces, while the coarse thread and Class 2A fit ensure reliable engagement in plastic, wood, or soft metal substrates. Ideal for electrical enclosures, automotive trim, consumer electronics, and HVAC components, these fasteners provide consistent performance across a -40°F to 185°F temperature range, preventing failure under thermal cycling. Their non-magnetic and chemical-resistant nature makes them suitable for sensitive equipment, reducing maintenance and enhancing product lifespan.

Specification Summary & Compliance

This 4-40 UNC screw adheres to Class 2A thread fit tolerances for consistent assembly, with a 1/4" length and fully threaded design in the inch system. Manufactured to meet RoHS 3 (2015/863/EU) compliance, it excludes hazardous substances, ensuring safety in regulated applications. The coarse thread spacing and right-hand thread direction follow standard UNC specifications for broad compatibility.