S-95868A256 4-40 x 1/4" Plastic Socket Head Screws

Plastic Socket Head Screws

0021FA00148 Plastic Socket Head Screws
0021FA00148 Plastic Socket Head Screws

Image may differ from product. See technical specification for details.

Part No.
Part No. 0021FA00148
Equivalent to mcmaster :
95868A256

Basic Information

System of Measurement Inch

Head Parameters

Head Type Socket
Head Diameter 0.183"
Head Height 0.112"
Socket Head Profile Standard

Dimensions

Length 1/4"

Thread Parameters

Thread Type UNC
Thread Size 4-40
Thread Diameter 0.112"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 3/32"

Material & Strength

Material Nylon Plastic
Hardness Not Rated

Temperature & Environment

Temperature Range -40° to 140° F
RoHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
Price available upon request. Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
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Key Features & Benefits at a Glance

  • Superior torque transmission with 3/32" hex drive for reliable fastening in tight spaces
  • Excellent corrosion resistance due to nylon plastic construction, ideal for harsh environments
  • Electrical insulation properties prevent current leakage in sensitive electronic assemblies
  • Wide temperature tolerance from -40° to 140°F maintains performance in varying conditions
  • Precise Class 2A thread fit ensures smooth installation and consistent clamping force
  • RoHS 3 compliance meets environmental regulations for global manufacturing standards
  • Fully threaded design provides maximum grip length and uniform stress distribution

Professional Applications & Engineering Value

These nylon plastic socket head cap screws solve critical engineering challenges where metal fasteners fail. The 4-40 UNC coarse thread delivers rapid assembly in plastic housings and electronic enclosures, while the 3/32" hex drive prevents stripping in soft materials. As electrically insulating fasteners, they eliminate short-circuit risks in PCB mounting and electrical components. The temperature resistance from -40° to 140°F ensures dimensional stability in automotive, aerospace, and outdoor equipment where thermal cycling occurs. Their corrosion-resistant nature makes them perfect for chemical processing and marine applications without requiring protective coatings.

Specification Summary & Compliance

Manufactured to inch system standards with Class 2A thread fit for consistent engagement. Features right-hand UNC coarse threads on a fully threaded 1/4" length rod. Compliant with RoHS 3 (2015/863/EU) regulations for hazardous substance restrictions. Socket head profile conforms to industry-standard drive specifications for hex key compatibility.

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