S-95841A554 1/4"-20 x 3" Plastic Hex Head Screws

Plastic Hex Head Screws

0251FA00188 Plastic Hex Head Screws
0251FA00188 Plastic Hex Head Screws

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

Part No.
Part No. 0251FA00188
Equivalent to mcmaster :
95841A554

Basic Information

Color Gray
System of Measurement Inch

Head Parameters

Head Type Hex
Head Width 7/16"
Head Height 15/64"

Dimensions

Length 3"

Thread Parameters

Thread Type UNC
Thread Size 1/4"-20
Thread Diameter 0.25"
Thread Spacing Coarse
Min Thread Length 3/4"
Thread Direction Right Hand
Thread Fit Class 2A
Threading Partially Threaded

Tip & Drive Parameters

Drive Style External Hex

Material & Strength

Material PVC Plastic
Hardness Not Rated

Temperature & Environment

Maximum Temperature 140°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

  • Chemical and corrosion resistance from PVC plastic construction ensures longevity in harsh industrial environments
  • Secure external hex drive provides reliable torque transmission and easy installation with standard tools
  • Class 2A thread fit guarantees consistent, reliable fastening with standard UNC coarse threaded components
  • Electrical insulation properties make these screws ideal for electrical applications where conductivity must be avoided
  • RoHS 3 compliance ensures environmental responsibility and meets international regulatory standards
  • Partially threaded design allows for precise clamping force control in assembly applications
  • 140°F temperature rating provides reliable performance in moderate heat environments

Professional Applications & Engineering Value

These gray PVC hex head screws deliver exceptional value in applications requiring chemical resistance and electrical insulation. The PVC material withstands exposure to chemicals, moisture, and corrosive elements while providing excellent dielectric properties. The UNC coarse threading ensures quick assembly and disassembly, reducing installation time in production environments. The external hex drive design allows for high torque application without stripping, making them ideal for industrial applications where plastic fasteners are preferred for their non-conductive and non-corrosive properties. These screws solve critical engineering challenges in electrical enclosures, chemical processing equipment, and marine applications where metal fasteners would corrode or create electrical hazards.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with 1/4"-20 UNC coarse thread and Class 2A thread fit for consistent performance. These screws feature a 3/4" minimum thread length and partially threaded design for controlled fastening. The product is fully RoHS 3 (2015/863/EU) compliant, meeting international environmental standards for hazardous substance restrictions. Manufactured with PVC plastic rated for continuous service up to 140°F, ensuring reliability in specified operating conditions.

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