S-94564A100 1/4"-20 x 1 1/2" Set Screws

Set Screws

0637FA00021 Set Screws
0637FA00021 Set Screws

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

Part No.
Part No. 0637FA00021
Equivalent to mcmaster :
94564A100

Basic Information

Color Off-White
System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 1 1/2"

Thread Parameters

Thread Type UNC
Thread Size 1/4"-20
Thread Diameter 0.25"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A

Tip & Drive Parameters

Tip Type Flat
Drive Style Hex
Drive Size 1/8"

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
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Key Features & Benefits at a Glance

  • Superior corrosion resistance - Ideal for harsh environments where metal fasteners would degrade
  • Excellent electrical insulation properties - Perfect for electrical applications requiring non-conductive components
  • Wide temperature tolerance - Maintains performance from -40° to 185°F in various industrial conditions
  • Precise Class 2A thread fit - Ensures reliable engagement and consistent clamping force
  • Recessed hex drive design - Provides secure tool engagement while maintaining flush mounting capability
  • RoHS 3 compliance - Meets international environmental standards for hazardous substances
  • Non-marring flat tip - Protects sensitive surfaces from damage during installation

Professional Applications & Engineering Value

This nylon plastic set screw delivers exceptional value in applications where traditional metal fasteners prove problematic. The off-white nylon construction provides inherent corrosion resistance, making it ideal for marine environments, chemical processing equipment, and outdoor applications where moisture and corrosive agents are present. The material's electrical insulation properties make it perfect for electronic enclosures, electrical panels, and applications requiring non-conductive fastening solutions. The 1/4"-20 UNC coarse thread with Class 2A fit ensures reliable performance while the headless design with hex drive allows for flush mounting in tight spaces. These set screws effectively solve common industry challenges where galvanic corrosion, electrical conductivity, or chemical compatibility issues would compromise metal alternatives.

Specification Summary & Compliance

This fastener features 1/4"-20 UNC coarse threads with Class 2A thread fit per standard inch system specifications, ensuring dimensional accuracy and proper engagement. The 1-1/2" length and 1/8" hex drive provide consistent installation performance. Manufactured from high-quality nylon plastic with flat tip design and right-hand thread direction. Compliant with RoHS 3 (2015/863/EU) regulations, meeting international standards for restricted hazardous substances in electrical and electronic equipment.

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