S-93939A718 4-40 x 1/2" Plastic Fillister Head Slotted Screws
Plastic Fillister Head Slotted Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Excellent corrosion resistance with nylon plastic construction, ideal for harsh environments without risk of rust or galvanic reactions.
- Broad temperature tolerance from -40°F to 185°F, ensuring reliable performance in varied industrial conditions.
- Secure and precise fastening with Class 2A thread fit and fully threaded design for consistent grip and reduced loosening.
- Easy installation and removal thanks to the slotted drive style, compatible with standard screwdrivers for quick maintenance.
- Enhanced head engagement from the high, narrow fillister head profile, providing better torque transmission and a flush finish.
- Environmental compliance with RoHS 3 standards, meeting safety regulations for electronics and sensitive applications.
- Lightweight and non-conductive material reduces overall weight and prevents electrical interference in assemblies.
Professional Applications & Engineering Value
This 4-40 UNC nylon plastic fillister head slotted screw is engineered to address common industrial challenges such as corrosion, electrical insulation, and weight reduction. Made from durable nylon plastic, it resists moisture, chemicals, and UV exposure, making it perfect for electrical enclosures, automotive components, and consumer electronics. The coarse UNC threading and Class 2A fit ensure quick assembly and reliable holding power in plastic or soft materials, reducing strip-out risks. Its high rounded head profile offers improved clamping force, while the slotted drive allows for straightforward manual adjustments. Ideal for applications requiring temperature resistance from -40°F to 185°F, this screw provides long-term durability without compromising on RoHS compliance for eco-conscious manufacturing.
Specification Summary & Compliance
This screw features a 4-40 UNC coarse thread with Class 2A thread fit for standard dimensional accuracy and ease of use. It is fully threaded and right-hand threaded, adhering to common UNC thread standards. The product complies with RoHS 3 (2015/863/EU) regulations, ensuring it is free from hazardous substances for safe industrial and electronic applications.
