| Part Number |
Metric |
US Standard |
use Tap |
QTY |
| 20/156/0000 |
1.0mm |
.0400 (#60) |
20/153/0000 |
2 |
| 20/157/0000 |
1.1mm |
.0430 (#57) |
20/154/0000 |
2 |
| 20/158/0000 |
1.2mm |
.0465 (#56) |
20/155/0000 |
2 |
| 20/170/0000 |
1.3mm
|
.0511 (#55) |
20/169/0000 |
2 |
| 20/176/0000 |
1.4mm |
.055 (#54) |
20/169/0000 |
2 |
| 20/171/0000 |
1.5mm |
.059 (#53) |
20/165/0000 |
2 |
| 20/122/0000 |
1.6mm |
.0625 (1/16) |
|
2 |
| 20/172/0000 |
1.7mm |
.067 (#51) |
|
2 |
| 20/178/0000 |
1.8mm |
.070 (#50) |
|
2 |
| 20/173/0000 |
2.0mm
|
.078 (5/64)
|
|
2
|
1.4mm is the most common sized screw in optical frames; therefore we recommend the 20/157/0000 drill bit to drill out broken screws.
you can then use 20/169/0000 tap to replenish the threads.
|
