TR Self Clinch Stud installation

 

The TR Self Clinch Stud design is based around the Clinch Nut features and installation principles but offers a male thread cut to customer length requirements.

 
1 Step 1 Flush Head Stud Step 1

Select the appropriate hole size from the table below for the stud size required. Punch the hole diameter into the sheet and place on top of the appropriate anvil.

2 Step 2 Flush Head Stud Step

Place the stud so that the head serrations rest on the parent material. Ensure both plate and stud are aligned along the same axis. If not, the joint will be imperfect and mating threads will misalign. 

3 Step 3 Flush Head Stud Step 3

Using a flat faced punch, apply only sufficient pressure to ‘squeeze’ the stud head and its under head tooth features into the parent sheet.

4 Step 4 Flush Head Stud Step 4

The tooth locking feature if properly installed will provide torsional (rotational) resistance. After installation the spigot joint should be flush with the sheet.

 

 

Installation animation


 

Using the table below with reference to the specific size of the clinch stud, select the correct hole size for the installation of the fastener.

For the best dimensional accuracy and therefore performance, TR recommends that all holes in the sheet metal application be punched.

 

 

Hole sizes - metric (mm)


Thread size M3 M4 M5 M6 M8
Min rec sheet thickness 1.0 1.0 1.0 1.6 2.4
Hole +0.08 -0.0 3.0 4.0 5.0 6.0 8.0
Min distance to edge of sheet 5.6 7.2 7.2 7.9 9.0
 

 

Hole sizes - inches


Imperial dimensions
Thread size 4 6 8 10
Min rec sheet thickness 0.40 .040 .040 .040
Hole +0.08 -0.0 .111 .137 .163 .189
Min distance to edge of sheet .220 .250 .280 .280
 

 

Tooling - standard


Sheet thickness: up to 1.5mm for M3 to M5 threads 1.51mm to 2.4mm for M6 thread
Self clinch stud standard sheet thickness Thread size D mm +0.08 B mm +0.1
M2.5 2.53 3.1
M3 3.03 3.6
M3.5 3.53 4.1
M4 4.03 4.6
M5 5.03 5.6
M6 6.03 6.6
M8 8.03 -
 
Sheet thickness: 1.51mm to 2.4mm for M3 to M5 threads over 2.4mm for M6 & M8 threads
Self clinch stud standard sheet thickness thread over 2.4mm Thread size D mm +0.08
M2.5 2.53
M3 3.03
M3.5 3.53
M4 4.03
M5 5.03
M6 6.03
M8 8.03
 

 

Tooling - hard stainless


Self clinch stud hard stainless tooling         Self clinch stud hard stainless tooling
Thread size A mm +0.08 B mm +/-0.05  C mm +/-0.05 P mm +/-0.025 R1 Max. R2 Max.
M3 3.05 3.81 4.57 0.25 0.08 0.13
M4 4.04 4.95 5.82 0.25 0.08 0.13
M5 5.08 6.15 7.16 0.25 0.08 0.13
M6 6.05 7.87 8.79 0.51 0.08 0.13