These grommets and washers have a telescoping, barrel to barrel setting reinforcing the hole with two entire parts. This type of grommet and washer combination is ideal for thicker gauge textiles and materials. Neck grommet and washers are ideal for dual-feed, high-speed machines since the neck provides the setting machine with something to grab on to so it can be fed down the raceway toward the tools.
Neck washers are commonly used in place of plain washers in grommet machines that feed and set both the grommet and the washer, as the washer’s neck allows it to be guided down a track (aka “the roadway”) of the setting machine.
Grommet (inches):
Hole Size: 5/16
Flange Diameter: .630
Length Under Flange: .200
Metal Thickness: .015
Washer (inches):
Inside Diameter: .400
Outside Diameter: .655
Metal Thickness: .011