S-99477A470 10-32 x 1 1/4" Plastic Socket Head Screws

Plastic Socket Head Screws

0021FA00421 Plastic Socket Head Screws
0021FA00421 Plastic Socket Head Screws

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

Part No.
Part No. 0021FA00421
Equivalent to mcmaster :
99477A470

Basic Information

Color Off-White
System of Measurement Inch

Head Parameters

Head Type Socket
Head Diameter 5/16"
Head Height 0.19"
Socket Head Profile Standard

Dimensions

Length 1 1/4"

Thread Parameters

Thread Type UNF
Thread Size 10-32
Thread Diameter 0.19"
Thread Spacing Fine
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 5/32"

Material & Strength

Material Polypropylene Plastic
Hardness Not Rated

Temperature & Environment

Temperature Range -20° to 210° 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

  • Exceptional corrosion resistance due to durable polypropylene construction, ideal for harsh environments without risk of rust or chemical degradation.
  • Reliable performance across a wide temperature range from -20° to 210° F, ensuring stability in both cold and moderately high heat applications.
  • Secure and precise fastening with Class 2A thread fit and 10-32 UNF fine thread, providing excellent engagement and vibration resistance.
  • Easy installation and removal using a standard 5/32" hex drive, allowing for efficient assembly with common tools in tight spaces.
  • Full thread coverage along the 1-1/4" length for maximum grip and adjustability in various material thicknesses.
  • Compliance with RoHS 3 and REACH regulations, ensuring safety and environmental responsibility in industrial and consumer products.
  • Lightweight and non-conductive properties of off-white polyplastic, reducing overall weight and preventing electrical interference.

Professional Applications & Engineering Value

This 10-32 UNF threaded socket head cap screw is engineered from high-quality polypropylene plastic, offering a robust solution for applications where metal fasteners may fail due to corrosion or electrical conductivity issues. The fine thread and Class 2A fit ensure tight, reliable connections in assemblies subject to vibration, such as in electronics enclosures, automotive components, and laboratory equipment. Its right-hand thread and standard socket head profile allow for quick installation with a hex key, streamlining production lines. The material's inherent resistance to moisture and many chemicals, combined with a temperature range of -20° to 210° F, makes it suitable for outdoor, medical, and food processing industries, reducing maintenance costs and enhancing product lifespan.

Specification Summary & Compliance

This screw adheres to inch system measurements with precise dimensions: 1-1/4" length, 5/16" head diameter, and 5/32" hex drive. It features a UNF fine thread with Class 2A thread fit for consistent accuracy and is fully threaded for uniform load distribution. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), it meets stringent environmental and safety standards, ensuring reliability in global supply chains.

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