- Punch or drill the mounting hole. Do not deburr the hole or perform any other secondary operations.
- Place fastener into anvil recess then place sheet over the fastener spigot.
- Apply squeezing force, ensuring that the punch and anvil surfaces are parallel, until the retainer shoulder makes contact with the face of the sheet.
Hole Sizes - Metric (mm)
| Thread size |
M3 |
M4 |
M5 |
M6 |
| Min sheet thickness |
1.53 |
1.53 |
1.53 |
1.53 |
| Hole size in sheet +0.08 |
6.73 |
7.90 |
8.74 |
10.49 |
| Min distance to hole C/L from edge |
6.35 |
7.87 |
8.63 |
9.65 |
Hole Sizes - Inch (inches)
| Thread Size |
4-40 |
6-32 |
8-32 |
10-24 and 10-32 |
1/4-20 |
| Min. In Sheet Thickness |
0.06 |
0.06 |
0.06 |
0.06 |
0.06 |
| Hole size In Sheet + 0.003 - 0.000 |
0.265 |
0.281 |
0.312 |
0.344 |
0.413 |
| Min Dist Hole C/L To Edge |
0.255 |
0.285 |
0.315 |
0.345 |
0.385 |
Tooling
 |
Thread Size |
A mm 0.05 |
C Dim 0.05 |
| M3 |
8.76 |
8.2 |
| M4 |
11.05 |
9.8 |
| M5 |
11.05 |
10.69 |
| M6 |
14.35 |
12.29 |
Note: Due to the fact that fastening applications differ greatly, the above information is for guidance only and is correct to the best of our knowledge. The customer must satisfy themselves with the performance of the fastener and validity of the data. TR Fastenings will not be held responsible for any failure that may occur from the use of this information.