For use of NAG FASTMAN Screw Thread Inserts for
common Metric Thread sizes
| P |
= |
PITCH in mm |
| |
|
|
| Q |
= |
Length of minimum through hole or minimum length of
full form thread in blind hole. [Actual length of assembled
insert equals basic length less ½ Pitch |
| |
|
|
| R |
= |
Entering portion of Screw (max.) if tang is not removed
= Q – 1P |
| |
|
|
| S |
= |
Drill Depth (min.) [excluding point] |
| |
|
|
| |
= |
Q + 4 ½ P (if Plug Taps are used) |
| |
|
|
| Or |
= |
Q + 2 ½ P (if Bottoming Taps are used) |
| |
|
|
| T |
= |
Tap Depth (min.) |
| |
|
|
| |
= |
Q + 3 ½ P (if Plug Taps are used) |
| |
|
|
| Or |
= |
Q + 1 ½ P (if Bottoming Taps are used) |
