थ्रेड आकार | St2.9 | ST3 .. | St4.2 | ST4.8 | St5.5 | ST6.3 | ||
P | पिच | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
a | अधिकतम | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |
dk | अधिकतम | Ent। | 7 | 8 | .5 ..। | 11 | 12 | |
दारी | .3.3 | .6..64 | .6..64 | 9.14 | 10..77 | 11.57 | ||
k | अधिकतम | 2.4 | 2.6 | .1.1 | 7.7.7 | 4 | .6..6 | |
दारी | 2.115 | 2.3535 | 2.8 | 4. | 7.7.7 | 13.3 | ||
r | दारी | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.25 | |
R | ≈ | 5 | 6 | .5 ..5 | 8 | 9 | 10 | |
dp | 2.3 | 2.8 | ..6 | .1 | 13.8 | .8.8 | ||
ड्रिलिंग दायरा (मोटाई) | 0.7 ~ 1.9 | 0.7 ~ 2.25 | 1.7575 ~ 3 | 1.7575 ~ 4. | 1.7575.25। | 2 ~ 6 | ||
सकेट नम्बर | 1 | 2 | 2 | 2 | 3 | 3 | ||
M1 | 3 | 9.9 | .4.4 | .. .. | .4 ..4 | .9.9 | ||
M2 | 3 | 4 | .4.4 | 13.8 | .2.2 | .5 ..8 |