S-92942A721 4-40 x 1/2" Plastic Pan Head Slotted Screws
Plastic Pan 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 electrical insulation from non-conductive nylon plastic, preventing short circuits in sensitive applications
- Superior corrosion resistance for reliable performance in humid or chemically aggressive environments without rusting
- Wide temperature tolerance from -40°F to 185°F, maintaining structural integrity across diverse operating conditions
- Easy manual installation with slotted drive and rounded pan head design for straightforward tool engagement
- Precise thread engagement through Class 2A UNC coarse threading ensuring secure fastening in plastic and soft materials
- Full-length threading providing maximum grip and adjustment flexibility along the entire 1/2" shaft
- Environmental compliance with RoHS 3 standards, meeting strict regulatory requirements for hazardous substances
Professional Applications & Engineering Value
These 4-40 UNC nylon plastic screws deliver critical electrical insulation properties while offering exceptional chemical resistance where metal fasteners would fail. The pan head design with slotted drive combines easy installation with a low-profile appearance, ideal for electronic enclosures, control panels, and instrumentation where space constraints exist. Engineered with coarse UNC threads and Class 2A fit, they provide reliable fastening in plastic components and soft materials without stripping threads. The temperature resistance from -40° to 185° F ensures stable performance in both industrial and consumer electronics applications, while the fully threaded design maximizes holding power in assemblies requiring frequent adjustments.
Specification Summary & Compliance
This rounded head screw features precise 4-40 UNC coarse threads with Class 2A thread fit according to inch system standards. The 1/2" length provides consistent fastening depth with fully threaded engagement. Manufacturing complies with RoHS 3 (2015/863/EU) regulations, ensuring environmental safety and restricted substance compliance for global markets.
