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Flush Head with 127H Half Grommet

1. Drill and dimple hole in panel.

Type of Stud Dia. Before Dimpling "B" +.010
-.000
(Dia. After Dimpling)		 "D"
+.010
-.000		 "H"
±2°
2356-20 .198" .218" .406" 100°
2506-20 19/64" .312" .640" 120°
2606-20 23/64" .375" .710" 120°
Drill and Dimple Hold Drawing

Note: Dimpling tool not supplied.

2. Insert stud and slip grommet over stud.

Insert Stud and Slip on Grommet Drawing

3. Flatten Grommet.

Flatten Grommet Drawing

The triple-x (xxx) in the tool part number stands for the stud size number, I.e., 35, 5, or 6.

Flush Head Stud using type 127H Half Grommet Retainer Tooling
A 9916-1-6-Hxxx-BB is used to flatten the grommet while a Flat Surface Plate supports the stud and panel.

Flush Head with 1276 Full Grommet

1. Drill and Dimple Hole 2. Install Grommet
Type of Stud Hole Diameter
2356-20 N/A
2506-20 3/8"
2606-20 7/16"
Note: Dimpling tool not supplied. Install Grommet Drawing
3. Set Grommet 4. Insert and Clinch Stud Note: Dimpled Panels require Dimpled Supports.

The triple-x (xxx) in the tool part number stands for the stud size number, i.e., 35, 5, or 6.

Set Grommet Drawing with Tooling Identification Insert and Clinch Stud Drawing with Tooling Identification
Flush Head Stud using type 1276 Full Grommet Retainer
Installation of a 1276 Full Grommet Retainer is a multi-step process and requires several different tools.
  1. DFCI does not supply the Dimpling tool.
  2. A 9916-3-6xxx-BB is used to set the grommet in the dimpled hole while a 9902-3-6xxx-BB Side A is used to support the panel.
  3. A 9902-3-6xxx-BB Side A is used to support the panel while a flat surface plate applies pressure to clinch the grommet and panel to the stud.

Flush Head with no retainer (reverse-clinched)

1. Drill and Dimple Hole 2. Insert Stud
Type of Stud Hole
Dia.		 MAX Panel Thickness for Dimpling
2356-20 .198" .030"
2506-20 19/64" .040"
2606-20 23/64" .050"
Note: Dimpling tool not supplied. Insert Stud Drawing
3. Clinch Stud   Note: Dimpled panels require dimpled supports.
Reverse Clinch Stud Drawing The triple-x (xxx) in the tool part number stands for the stud size number, i.e., 35, 5, or 6
Flush Head Stud using no retainer
(dimpled and reverse-clinched panel stud hole)
Installation in a dimpled and reverse-clinched panel stud hole is a two step process.
  1. DFCI does not supply the Dimpling tool.
  2. Once the stud is inserted in the hole, a Flat Surface Plate is used against a 9902-3-6-Nxxx-BB to clinch the stud in the hole.