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Captive Panel Screw - Type 3

The Captive Panel Screw type 3 is designed to remain attached even if unscrewed when used with a captive panel retainer. Type 3 captive panel screws, like other types of captive panel screws, are most commonly used on equipment's control panel doors to keep it screwed shut during normal operating conditions.

When access to the equipment is needed, unthreading the type 3 captive panel screw allows for the door to be open, while the retainer keeps the screw attached to the door. A perfect solution to prevent a lost screw from becoming lost during a field repair or creating a safety hazard.

Type of Captive Panel Screws

All Lyn-Tron Captive Panel Screws types come in multiple head designs, varying shank lengths and diameters, and all common thread sizes. With so many Captive Panel Screw options, you are sure to find the right screw for your application, equipment, and accessories.

Our Captive Panel Screws type 3 is manufactured from several types of materials:

  • Brass panel screw type
  • Stainless steel captive screw type
  • Steel captive panel type

More Questions About Captive Panel Screws or Lyn-Tron's Custom Services?

Lyn-Tron has been manufacturing electronic components and hardware supplies for various sorts of equipment and accessories for over 50 years! All Lyn-Tron electronic hardware is made in the USA and held to the highest quality standards.

Feel free to contact us today if you have any questions about selecting a captive panel screw type 3 for your project or our services, or would like to request custom parts or OEM-designed hardware manufactured to your print.

#4-40 Captive Panel Screw - Type 3

Steel

Part Number Material Male Thread Head Diameter Shank Length Under Head Length Washer Diameter Washer Length Point Diameter Point Length Details
ST3568 Steel #4-40 1/4" 3/16" 1/2" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 1/4"
  • Shank Length: 3/16"
  • Under Head Length: 1/2"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3569 Steel #4-40 1/4" 1/4" 9/16" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 1/4"
  • Shank Length: 1/4"
  • Under Head Length: 9/16"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3570 Steel #4-40 1/4" 5/16" 5/8" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 1/4"
  • Shank Length: 5/16"
  • Under Head Length: 5/8"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3571 Steel #4-40 1/4" 3/8" 11/16" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 1/4"
  • Shank Length: 3/8"
  • Under Head Length: 11/16"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3572 Steel #4-40 1/4" 7/16" 3/4" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 1/4"
  • Shank Length: 7/16"
  • Under Head Length: 3/4"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3573 Steel #4-40 1/4" 1/2" 13/16" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 1/4"
  • Shank Length: 1/2"
  • Under Head Length: 13/16"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3574 Steel #4-40 1/4" 9/16" 7/8" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 1/4"
  • Shank Length: 9/16"
  • Under Head Length: 7/8"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3575 Steel #4-40 1/4" 5/8" 15/16" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 1/4"
  • Shank Length: 5/8"
  • Under Head Length: 15/16"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3576 Steel #4-40 1/4" 11/16" 1" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 1/4"
  • Shank Length: 11/16"
  • Under Head Length: 1"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3577 Steel #4-40 5/16" 3/16" 1/2" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 5/16"
  • Shank Length: 3/16"
  • Under Head Length: 1/2"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3578 Steel #4-40 5/16" 1/4" 9/16" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 5/16"
  • Shank Length: 1/4"
  • Under Head Length: 9/16"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3579 Steel #4-40 5/16" 5/16" 5/8" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 5/16"
  • Shank Length: 5/16"
  • Under Head Length: 5/8"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3580 Steel #4-40 5/16" 3/8" 11/16" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 5/16"
  • Shank Length: 3/8"
  • Under Head Length: 11/16"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3581 Steel #4-40 5/16" 7/16" 3/4" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 5/16"
  • Shank Length: 7/16"
  • Under Head Length: 3/4"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3582 Steel #4-40 5/16" 1/2" 13/16" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 5/16"
  • Shank Length: 1/2"
  • Under Head Length: 13/16"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3583 Steel #4-40 5/16" 9/16" 7/8" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 5/16"
  • Shank Length: 9/16"
  • Under Head Length: 7/8"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3584 Steel #4-40 5/16" 5/8" 15/16" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 5/16"
  • Shank Length: 5/8"
  • Under Head Length: 15/16"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"
ST3585 Steel #4-40 5/16" 11/16" 1" 13/64" 1/16" 0.078" 0.125"
  • Material: Steel
  • Male Thread: #4-40
  • Head Diameter: 5/16"
  • Shank Length: 11/16"
  • Under Head Length: 1"
  • Washer Diameter: 13/64"
  • Washer Length: 1/16"
  • Point Diameter: 0.078"
  • Point Length: 0.125"