JIC Size Code | Thread Size | Thread Pitch |
-03 | 3/8" UNF | 24 TPI |
-04 | 7/16" UNF | 20 TPI |
-06 | 9/16" UNF | 18 TPI |
-08 | 3/4" UNF | 16 TPI |
-10 | 7/8" UNF | 14 TPI |
-12 | 1-1/16" UNF | 12 TPI |
-16 | 15/16" UNF | 12 TPI |
-20 | 1-5/8" UNF | 12 TPI |
Size (ISO) | Pitch (mm) | Metric Drill Size (mm) | Imperial Drill Size (inches) |
M3 | 0.35 Fine 0.5 Standard |
2.65 2.5 |
|
M3.5 | 0.35 Fine 0.6 Standard |
3.15 2.9 |
|
M4 | 0.5 Fine 0.7 Standard |
3.5 3.3 |
|
M4.5 | 0.5 Fine 0.75 Standard |
4 3.7 |
|
M5 | 0.5 Fine 0.8 Standard |
4.5 4.2 |
|
M6 | 0.75 Fine 1 Standard |
5.2 5 |
|
M7 | 0.75 Fine 1 Standard |
6.2 6.2 |
15/64 |
M8 | 0.75 Fine 1 Standard 1.25 Coarse |
7.2 7 6.8 |
17/64 |
M9 | 0.75 Fine 1 Standard 1.25 Coarse |
8.2 8 7.8 |
|
M10 | 1 Fine 1.25 Standard 1.5 Coarse |
9 8.8 8.5 |
11/32 |
M11 | 1 Fine 1.5 Standard |
10 9.5 |
|
M12 | 1 1.25 1.5 1.75 |
11 10.8 10.5 10.2 |
27/64 |
M14 | 1.5 Fine 2 Standard |
12.7 12.7 |
|
M16 | 1.5Fine 2 Standard |
14.7 14.2 |
35/64 |