|
NUMBER SIZE MACHINE SCREWS
TAP DRILL AND CLEARANCE DRILL SIZES
|
SCREW SIZE |
THREADS PER INCH |
DRILL SIZES |
|
No. |
O.D. |
N.C. |
N.F. |
TAP |
CLEAR |
|
0 |
.060 |
|
80 |
3/64 |
#51 |
|
1 |
.073 |
64 |
|
#53 |
#47 |
|
1 |
.073 |
|
72 |
#53 |
#47 |
|
2 |
.086 |
56 |
|
#50 |
#42 |
|
2 |
.086 |
|
64 |
#50 |
#42 |
|
3 |
.099 |
48 |
|
#47 |
#37 |
|
3 |
.099 |
|
56 |
#46 |
#37 |
|
4 |
.112 |
40 |
|
#43 |
#31 |
|
4 |
.112 |
|
48 |
3/32 |
#31 |
|
5 |
.125 |
40 |
|
#38 |
#29 |
|
5 |
.125 |
|
44 |
#37 |
#29 |
|
6 |
.138 |
32 |
|
#36 |
#27 |
|
6 |
.138 |
|
40 |
#33 |
#27 |
|
8 |
.164 |
32 |
|
#29 |
#18 |
|
8 |
.164 |
|
36 |
#29 |
#18 |
|
10 |
.190 |
24 |
|
#26 |
#9 |
|
10 |
.190 |
|
32 |
#21 |
#9 |
|
12 |
.216 |
24 |
|
#16 |
#2 |
|
12 |
.216 |
|
28 |
#15 |
#2 |
Note: Tap Drill Sizes shown give approximately 75%
depth of thread
|