S-95868A079 1/4"-28 x 3/8" Plastic Socket Head Screws

Plastic Socket Head Screws

0021FA00121 Plastic Socket Head Screws
0021FA00121 Plastic Socket Head Screws

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

Part No.
Part No. 0021FA00121
Equivalent to mcmaster :
95868A079

Basic Information

System of Measurement Inch

Head Parameters

Head Type Socket
Head Diameter 3/8"
Head Height 1/4"
Socket Head Profile Standard

Dimensions

Length 3/8"

Thread Parameters

Thread Type UNF
Thread Size 1/4"-28
Thread Diameter 0.25"
Thread Spacing Fine
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 3/16"

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
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Key Features & Benefits at a Glance

  • Corrosion-resistant nylon construction eliminates rust and galvanic corrosion in sensitive environments
  • Precise Class 2A thread fit ensures smooth installation and reliable clamping force in fine-thread applications
  • Wide temperature tolerance (-40° to 140°F) maintains integrity across diverse operating conditions
  • 3/16" hex drive with standard socket head provides secure tool engagement and consistent torque application
  • RoHS 3 compliance meets stringent environmental regulations for electronic and consumer applications
  • Fully threaded design offers maximum adjustment flexibility and uniform stress distribution
  • Lightweight plastic composition reduces overall assembly weight while providing electrical insulation

Professional Applications & Engineering Value

Engineered for precision assemblies requiring non-conductive, non-magnetic properties, this nylon socket head cap screw solves critical challenges in electrical enclosures, food processing equipment, and marine applications where metal fasteners would cause interference or corrosion. The 1/4"-28 UNF fine threading delivers superior resistance to vibration loosening compared to coarse threads, while the Class 2A thread fit guarantees consistent performance in high-cycle manufacturing environments. The standard socket head profile with 3/16" hex drive accommodates standard tools for efficient installation in confined spaces, making these plastic socket head screws ideal for maintenance-sensitive applications where regular disassembly is required.

Specification Summary & Compliance

This socket head cap screw features 1/4"-28 UNF fine threads manufactured to Class 2A tolerance with right-hand thread direction and fully threaded rod type. Manufactured in inch system dimensions with 3/8" length, 3/8" head diameter, and standard socket head profile. The component is RoHS 3 (2015/863/EU) Compliant and suitable for applications within the specified temperature range of -40° to 140°F.

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