S-91297A624 3/8"-16 x 1" Plastic Hex Head Screws

Plastic Hex Head Screws

0251FA00041 Plastic Hex Head Screws
0251FA00041 Plastic Hex Head Screws

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

Part No.
Part No. 0251FA00041
Equivalent to mcmaster :
91297A624

Basic Information

Color White
System of Measurement Inch

Head Parameters

Head Type Hex
Head Width 9/16"
Head Height 17/64"

Dimensions

Length 1"

Thread Parameters

Thread Type UNC
Thread Size 3/8"-16
Thread Diameter 0.375"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style External Hex

Material & Strength

Material PTFE Plastic
Hardness Not Rated

Temperature & Environment

Temperature Range -100° to 500° F
REACH Compliant
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

  • Exceptional temperature resistance from -100°F to 500°F ensures reliable performance in extreme thermal environments
  • Superior chemical and corrosion resistance thanks to pure PTFE plastic construction for long service life in harsh conditions
  • Secure external hex drive design provides positive tool engagement and prevents stripping during installation
  • Precision Class 2A thread fit delivers consistent engagement and reliable fastening in industrial assemblies
  • Full threading along the entire 1" length offers maximum adjustment flexibility and holding power
  • RoHS 3 and REACH compliance meets stringent international environmental regulations for safe usage
  • Coarse UNC thread profile enables quick installation and reduced cross-threading risks

Professional Applications & Engineering Value

These PTFE plastic hex head screws solve critical engineering challenges in demanding environments where metal fasteners fail. The white PTFE construction provides inherent chemical resistance against aggressive solvents, acids, and bases while maintaining dimensional stability across extreme temperature fluctuations from cryogenic to high-heat applications. The 3/8"-16 UNC coarse thread with Class 2A fit ensures reliable engagement in plastic, soft metal, and composite materials without stripping threads. External hex drive design allows for high torque application using standard tools, making these fully threaded screws ideal for industrial fastening in chemical processing equipment, food machinery, semiconductor manufacturing, and laboratory instrumentation where contamination prevention and thermal stability are paramount.

Specification Summary & Compliance

This 1" length hex head screw features precision 3/8"-16 UNC coarse threads with Class 2A thread fit according to standard inch measurement specifications. The fastener is manufactured from pure PTFE plastic with right-hand thread direction and fully threaded shank design. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in regulated industrial applications worldwide.

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