S-99091A827 10-32 x 3/8" Plastic Hex Head Screws

Plastic Hex Head Screws

0251FA00259 Plastic Hex Head Screws
0251FA00259 Plastic Hex Head Screws

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

Part No.
Part No. 0251FA00259
Equivalent to mcmaster :
99091A827

Basic Information

Color Black
System of Measurement Inch

Head Parameters

Head Type Hex
Head Width 5/16"
Head Height 1/8"

Dimensions

Length 3/8"

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 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 humid or chemical environments without rust concerns.
  • Secure and reliable fastening with Class 2A thread fit ensuring precise, vibration-resistant connections in fine thread applications.
  • Easy installation and removal using standard external hex drive tools, providing familiar and efficient assembly.
  • Wide temperature tolerance from -40°F to 185°F, maintaining performance in varied thermal conditions.
  • Lightweight and non-conductive properties reduce overall weight and prevent electrical conductivity risks.
  • Full threading along the 3/8" length offers maximum grip and adjustability in thin materials or tight spaces.
  • RoHS 3 compliance ensures environmental safety and meets stringent regulatory standards for hazardous substances.

Professional Applications & Engineering Value

This 10-32 UNF fine thread nylon plastic hex head screw is engineered to address common industrial challenges such as corrosion, weight reduction, and electrical isolation. The black nylon material provides inherent resistance to moisture, chemicals, and UV exposure, making it suitable for outdoor equipment, electrical enclosures, and marine applications. With a Class 2A thread fit and external hex drive, it ensures quick, tool-friendly installation while maintaining tight tolerances to prevent loosening under vibration. Its fully threaded design and right-hand thread direction enable consistent holding power in plastics, composites, or soft metals, reducing assembly time and improving reliability in demanding B2B environments like automotive, electronics, and consumer goods manufacturing.

Specification Summary & Compliance

This screw adheres to inch system measurements with a 10-32 UNF fine thread and Class 2A thread fit for precise dimensional accuracy. It is manufactured to standard specifications for external hex drive and fully threaded design, ensuring compatibility with common fastening tools. Compliance includes RoHS 3 (2015/863/EU), confirming it is free from restricted hazardous substances, and it operates effectively within a temperature range of -40°F to 185°F for reliable performance in various industrial settings.

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