S-97263A717 4-40 x 1/2" Plastic Round Head Slotted Screws

Key Features & Benefits at a Glance

• Excellent corrosion resistance due to nylon plastic construction, ideal for humid or chemical environments without rusting.
• Secure and reliable fastening with Class 2A thread fit ensuring consistent engagement and reduced loosening risks.
• Broad temperature tolerance from -40°F to 185°F, maintaining integrity in varied operational conditions.
• Easy installation and removal with a standard slotted drive, compatible with common tools for efficient assembly.
• Lightweight and non-conductive properties reduce overall weight and prevent electrical interference in sensitive applications.
• Full threading design provides maximum grip along the entire length, enhancing holding power in plastic or soft materials.
• Environmentally compliant with RoHS 3 standards, ensuring safe use in regulated industries and global markets.

Professional Applications & Engineering Value

This 4-40 UNC nylon plastic rounded head slotted screw is engineered to address common industrial challenges such as corrosion, weight reduction, and electrical insulation. Made from durable nylon material, it resists moisture, chemicals, and UV exposure, making it perfect for outdoor equipment, electronic enclosures, and automotive components. The coarse UNC threading and Class 2A fit ensure quick, secure fastening in plastics and soft substrates, reducing assembly time and minimizing strip-out risks. Its rounded head profile and slotted drive style allow for straightforward manual or automated installation, while the broad temperature range supports reliability in environments from freezing cold to moderate heat. Ideal for B2B procurement in manufacturing, electronics, and consumer goods, this screw delivers consistent performance without the need for additional coatings or maintenance.

Specification Summary & Compliance

This screw adheres to inch system measurements with precise dimensions: 4-40 UNC coarse thread, Class 2A thread fit for standard tolerance, and a length of 1/2". It features a head diameter of 0.211" and is fully threaded for uniform fastening. Compliance includes RoHS 3 (2015/863/EU), ensuring it meets environmental regulations for hazardous substance restrictions. Manufactured to common industrial standards for plastic fasteners, it guarantees reliability in various applications without rated hardness, focusing instead on material durability and thread integrity.