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Stud Panel Preparation
for Flush Head Studs

Flush Head Studs

Panel Preparation for 1276 Grommet

Installation of a 1276 Full Grommet Retainer is a multi-step process and requires several different tools.

Flush Head Stud using type 1276 Full Grommet Retainer
1. Drill Hole
Stud Size Hole Diameter
4 17/64"
5 5/16"
6 3/8"
65 7/16"
7 15/32"
2. Dimple Hole
Stud Size Tool Part Number Block Part Number
4 9916-1-64-BB 9902-1-64-BB
5 9916-1-65-BB 9902-1-65-BB
6 9916-1-66-BB 9902-1-66-BB
65 9916-1-665-BB 9902-1-665-BB
7 9916-1-67-BB 9902-1-67-BB
Dimple Hole Drawing with Tooling Identification
3. Install Grommet
Install Grommet Drawing
4. Set Grommet
Stud Size Tool Part Number Block Part Number
4 9916-3-64-BB 9902-3-64-BB
5 9916-3-65-BB 9902-3-65-BB
6 9916-3-66-BB 9902-3-66-BB
65 9916-3-665-BB 9902-3-665-BB
7 9916-3-67-BB 9902-3-67-BB
Set Grommet Drawing with Tooling Identification
5. Insert Stud and Clinch Stud
Stud Size Block Part Number
4 9902-3-64-BB
5 9902-3-65-BB
6 9902-3-66-BB
65 9902-3-665-BB
7 9902-3-67-BB
Insert and Clinch Stud Drawing with Tooling Identification
Note: Dimpled Panels require Dimpled Supports.

Panel Preparation for Reverse Clinched Hole
(No Stud Retainer)

Installation in a dimpled and reverse-clinched panel stud hole is a multi step process.

1. Drill Hole
Stud
Size
Hole
Dia.
MAX Panel Thickness
for Dimpling
3 9/64" .030"
4 13/64" .040"
5 15/64" .050"
65 21/64" .078"
2. Dimple Hole
Stud
Size
Tool Part Number Block Part Number
3 9916-1-6-N3-BB 9902-1-6-N3-BB
4 9916-1-6-N4-BB 9902-1-6-N4-BB
5 9916-1-6-N5-BB 9902-1-6-N5-BB
65 9916-1-6-N65-BB 9902-1-6-N65-BB
Drill and Dimple Hole with Tooling Identification
3. Insert Stud
Insert Stud Drawing
4. Clinch Stud
Stud
Size
Block Part Number
3 9902-3-6-N3-BB
4 9902-3-6-N4-BB
5 9902-3-6-N5-BB
65 9902-3-6-N65-BB
Reverse Clinch Stud Drawing
Note: Dimpled Panels require Dimpled Supports.

Panel Preparation for 1219-R, 127H, and 127P

1. Drill and countersink holes
Stud Size Dim. A
+.010"
-.000"
Dim. B
+.010"
-.000"
Dim. C
+.010"
-.000"
3 .367" .188" .051"
4 .508" .250" .074"
5 .633" .313" .092"
65 .757" .407" .095"
Drill and Countersink Holes Drawing
2. Install stud retainer

1219-R and 127P Retainer Installation

9906-RS HAND TOOL is used to push the retainer over a Tapered Mandrel (included) and over the cam end of the stud until it reaches the undercut. Once the retainer reaches the undercut, it snaps back to its original size and prevents the stud from coming out of the panel.

Any flat block may be used to support the Flush Head Stud while the retainer is attached.

1. Place the stud head on the support and place the stud through the panel. Use a Flat Surface Plate in place of the block.  
2. Place the retainer on mandrel.  
3.Align ring or spring ends so that they will miss the stud cam.  
4. Place the mandrel in end of stud cam and place the tool over mandrel
Stud
Size
Tool Part Number
3 9906-RS-3-BB
4 9906-RS-4-BB
5 9906-RS-5-BB
65 9906-RS-65-BB
5. Push retainer until it is seated in the stud undercut.
1219-R

Snap Ring

Snap Ring Installation with Tooling Identification

127P

Push-on Grommet

127H Half Grommet Retainer installation

1. Place the stud head on the support and place the stud through the panel. Use a Flat Surface Plate in place of the block.    
2. Place the retainer on the stud cam. For a Standard Hole, the small diameter faces the panel. For an Oversize Hole, the large diameter faces the panel.   Aluminum Half Grommet Installation Drawing
Standard Hole: Small
Diameter Faces Panel
Aluminum Half Grommet Installation Oversized Hole Drawing
Oversize Hole: Large
Diameter Faces Panel
3. Use the tool to flatten the grommet against the panel.
Stud Size Tool Part Number
3 9916-5-13-BB
4 9916-5-14-BB
5 9916-5-15-BB
65 9916-5-165-BB
Aluminum Half Grommet Clinching

In this case, the 127H Half Grommet Retainer is flattened against the underside of the panel and can cause a gap between the panel containing the stud and the support containing the receptacle. Dimpling the support will allow the panel and support to come into direct contact by allowing the retainer to fit in the dimple. See S-Spring Receptacle Dimpling Tool.

Note: This stud panel hole permits use of S-Spring receptacles without a dimpled stud hole in support.

Panel Preparation for 127S-F
Thick Panel Grommet Retainer

Installation of a 127S-F Thick Panel Grommet Retainer is also a multi-step process and requires several different tools.

1. Make hole in panel for grommet press fit, then countersink and counter bore.
Stud Size Dim. A Dim. B Dim. C
3 .328" .219" .030"
4 .453" .313" .043"
5 .578" .375" .045"
2. Press grommet/stud assembly into hole
3. Flare grommet using flaring tool.
Stud Size Flaring Tool
Part Number
3 9906-A-3-BB
4 9906-A-4-BB
5 9906-A-5-BB
4. Flatten grommet using tool.
Stud Size Tool Part Number
3 9916-3-13-BB
4 9916-3-14-BB
5 9916-3-15-BB
Note: This stud panel hole permits use of S-Spring receptacles without a dimpled stud hole in support.