S-93939A714 4-40 x 1/4" Plastic Fillister Head Slotted Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from nylon plastic construction, eliminating rust and chemical degradation in harsh environments.
• Excellent electrical insulation properties for safe use in electronic assemblies and applications requiring non-conductive components.
• Broad temperature tolerance from -40°F to 185°F, ensuring reliable performance in varied operating conditions.
• Maximum holding power due to fully threaded design and 4-40 UNC coarse thread, providing strong, secure fastening.
• Easy installation and adjustment with a slotted drive fillister head, offering a classic, tool-friendly drive option.
• Precise thread fit with Class 2A tolerance, ensuring consistent engagement and reducing the risk of cross-threading.
• Environmental compliance with RoHS 3 standards, making it suitable for regulated industries and eco-conscious projects.

Professional Applications & Engineering Value

Engineered for demanding applications, this 4-40 UNC nylon plastic screw solves critical challenges in electronics, machinery, and consumer goods. Its nylon material provides inherent corrosion resistance and electrical insulation, preventing short circuits and degradation from moisture or chemicals. The rounded fillister head with a slotted drive allows for straightforward installation in tight spaces, while the coarse thread and full threading enhance grip in plastic or soft materials. Ideal for assemblies exposed to temperature fluctuations from -40°F to 185°F, it ensures durability without conductive risks, making it a top choice for electrical enclosures, automotive components, and insulated fixtures where reliability and safety are paramount.

Specification Summary & Compliance

This screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy and ease of assembly. Manufactured to meet RoHS 3 (2015/863/EU) compliance, it is free from hazardous substances, supporting environmental and safety regulations. The specifications include a right-hand thread direction, coarse thread spacing, and full threading for optimal performance in industrial fastening applications.