S-91221A455 8-32 x 3/4" Plastic Socket Head Screws

Plastic Socket Head Screws

0021FA00069 Plastic Socket Head Screws
0021FA00069 Plastic Socket Head Screws

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

Part No.
Part No. 0021FA00069
Equivalent to mcmaster :
91221A455

Basic Information

Color Off-White
System of Measurement Inch

Head Parameters

Head Type Socket
Head Diameter 0.27"
Head Height 0.164"
Socket Head Profile Standard

Dimensions

Length 3/4"

Thread Parameters

Thread Type UNC
Thread Size 8-32
Thread Diameter 0.164"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 9/64"

Material & Strength

Material Glass-Filled Nylon Plastic
Hardness Not Rated

Temperature & Environment

Temperature Range -20° to 230° F
REACH Compliant
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 glass-filled nylon construction ensures long-term reliability in harsh environments without rust or degradation.
  • Wide operating temperature range (-20° to 230°F) provides stable performance in both cold and high-heat industrial settings.
  • Class 2A thread fit with UNC coarse threads delivers consistent, reliable engagement and easier assembly in various materials.
  • Hex socket drive (9/64") design allows for secure tool engagement and high torque application without cam-out.
  • RoHS 3 and REACH compliance guarantees environmental safety and meets international regulatory standards for industrial use.
  • Fully threaded rod design offers maximum grip and adjustability across the entire screw length.
  • Off-white color and plastic material make it ideal for applications requiring electrical insulation and non-magnetic properties.

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these glass-filled nylon socket head cap screws address common challenges like corrosion, electrical conductivity, and thermal expansion. The UNC coarse threads with Class 2A fit ensure quick, secure fastening in plastic, metal, and composite assemblies, reducing installation time and improving reliability. With a temperature resistance from -20° to 230°F, they maintain structural integrity in automotive, electronics, and machinery applications where metal fasteners would fail due to galvanic corrosion or thermal cycling. The hex drive socket head provides flush mounting and high torque capability, making them perfect for confined spaces and vibration-prone equipment.

Specification Summary & Compliance

This screw features precision 8-32 UNC coarse threads with Class 2A fit, ensuring consistent dimensional accuracy and easy assembly. It is manufactured from glass-filled nylon plastic with a standard socket head profile and fully threaded design. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), meeting strict environmental and safety standards for industrial components.

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