S-94613A110 4-40 x 1/2" Plastic Hex Head Screws
Plastic Hex Head 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
- Corrosion-resistant nylon construction eliminates rust issues in humid or chemical environments, ensuring long-term reliability
- Lightweight plastic design reduces overall assembly weight while maintaining structural integrity for sensitive applications
- Wide temperature tolerance (-40° to 185°F) maintains performance stability across diverse operating conditions
- External hex drive with hex head provides secure tool engagement and efficient installation with standard wrench tools
- Class 2A thread fit with UNC coarse threading ensures consistent engagement and reliable fastening in various materials
- RoHS 3 compliance meets international environmental standards for restricted substances
- Fully threaded design offers maximum grip length and uniform clamping force distribution
Professional Applications & Engineering Value
These 4-40 UNC nylon plastic hex head screws deliver exceptional value in applications where metal fasteners would compromise performance. The off-white nylon material provides excellent electrical insulation properties, making these plastic fasteners ideal for electrical enclosures, control panels, and electronic assemblies where conductivity must be avoided. The coarse UNC thread design ensures quick installation and reliable holding power in plastic housings and softer materials, while the external hex drive allows for high-torque application without stripping. Engineered to operate reliably across a -40° to 185°F temperature range, these screws maintain dimensional stability in both extreme cold and moderate heat environments, solving common thermal expansion issues faced in automotive, outdoor equipment, and industrial control applications.
Specification Summary & Compliance
These screws feature precision 4-40 UNC coarse threads with Class 2A thread fit tolerances ensuring consistent performance across production runs. The manufacturing complies with RoHS 3 (2015/863/EU) environmental regulations, guaranteeing they're free from restricted hazardous substances. With dimensions of 1/2" length, 3/16" head width, and 1/16" head height, these fasteners maintain strict dimensional accuracy for reliable interchangeability in assembly operations.
