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Stimpson’s #4 sheet metal grommet and teeth washer locks on fabric and other woven materials for a secure setting. The teeth on the washer provide a firmer, tighter grasp while simultaneously preventing the grommet from spinning once set.  Available in three finishes, the #4 features a hole size of 1/2”, a length under flange of .375”, and a metal thickness of .016”. The inside diameter of the teeth washer is .593”, with an outside diameter of 1.050”, and a metal thickness of .016”. This multipurpose grommet and teeth washer combination can be used in a variety of materials and applications including industrial fabrics, canvas, leather, heavy-duty tarps, drapery, curtains, and vinyl banners. In order to set plain grommets with teeth washers, pre-punched holes in material are required unless they are used in conjunction with equipment designed to cut a hole and set the grommet. Manual, semi-automatic and fully-automatic grommet setting machines easily set #4 grommets and teeth washers ensuring installation runs smoothly and efficiently.

  • Material: Brass
  • Grommet (inches):
    • Hole Size: 1/2"
    • Flange Diameter: 1.050"
    • Length Under Flange: .375"
    • Metal Thickness: .016"
  • Washer (inches):
    • Inside Diameter: .593"
    • Outside Diameter: 1.050"
    • Metal Thickness: .016"
  • Finishes: Plain Brass, Dull Black Chemical Finish and Nickel Plated
  • Industries: Industrial Fabrics, Commercial Printing & Signage, Marine, and more
This part conforms to the following military specifications: NASM16491, Type II, Class 1 (Plain Brass), Class 2 (Brass Nickel), Class 3 (Brass Dull Black), Size 4

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