S-99091A192 8-32 x 3/8" Plastic Hex Head Screws

Plastic Hex Head Screws

0251FA00239 Plastic Hex Head Screws
0251FA00239 Plastic Hex Head Screws

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

Part No.
Part No. 0251FA00239
Equivalent to mcmaster :
99091A192

Basic Information

Color Black
System of Measurement Inch

Head Parameters

Head Type Hex
Head Width 1/4"
Head Height 7/64"

Dimensions

Length 3/8"

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 External Hex

Material & Strength

Material Nylon Plastic
Hardness Not Rated

Temperature & Environment

Temperature Range -40° to 185° 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

  • Excellent corrosion resistance due to nylon plastic construction, ideal for harsh environments where metal fasteners would degrade.
  • Secure and reliable fastening with a Class 2A coarse UNC thread fit, ensuring easy installation and vibration resistance.
  • Wide operating temperature range from -40° to 185° F, maintaining performance in both extreme cold and moderate heat.
  • High-strength, lightweight alternative to metal screws, reducing overall component weight without sacrificing durability.
  • Easy installation and removal with an external hex drive and standard 1/4" head width, compatible with common tools.
  • Electrical insulation properties of nylon plastic prevent electrical conductivity, enhancing safety in electronic assemblies.
  • Environmentally responsible manufacturing with full compliance to RoHS 3 regulations, meeting global safety standards.

Professional Applications & Engineering Value

These 8-32 UNC nylon plastic hex head screws are engineered to solve common industrial challenges where metal fasteners fall short. The black nylon material provides inherent resistance to corrosion, chemicals, and moisture, making them perfect for electrical enclosures, marine equipment, and food processing machinery. The coarse thread design and Class 2A thread fit ensure quick, secure fastening in plastic and soft materials, reducing the risk of stripping. With a temperature range of -40° to 185° F and fully threaded body, they offer consistent holding power in volatile environments, while the external hex drive allows for high-torque application with standard tools, streamlining assembly processes in industrial and commercial applications.

Specification Summary & Compliance

This product adheres to UNC coarse thread standards with a precise Class 2A thread fit for consistent dimensional accuracy. The screw features an 8-32 thread size, 3/8" length, and is fully threaded for maximum grip. It is manufactured in compliance with RoHS 3 (2015/863/EU), ensuring it is free from hazardous substances, and is suitable for various industrial specifications requiring plastic fasteners with reliable performance.

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