Common Screws | Clearance Hole Drills | |||||||
Size of Screw |
| Tap Drill | Close Fit | Free Fit | ||||
No. or Dia. | Decimal (inch) | Threads Per Inch | Drill Size | Decimal (inch) | Drill Size | Decimal (inch) | Drill Size | Decimal (inch) |
#0 | 0.060 | 80 | 3/64 | 0.0469 | 52 | 0.0635 | 50 | 0.0700 |
#1 | 0.073 | 64 | 53 | 0.0595 | 48 | 0.0760 | 46 | 0.0810 |
#1 | 0.073 | 72 | 53 | 0.0595 | 48 | 0.0760 | 46 | 0.0810 |
#2 | 0.086 | 56 | 50 | 0.0700 | 43 | 0.0890 | 41 | 0.0960 |
#2 | 0.086 | 64 | 50 | 0.0700 | 43 | 0.0890 | 41 | 0.0960 |
#3 | 0.099 | 48 | 47 | 0.0785 | 37 | 0.1040 | 35 | 0.1100 |
#3 | 0.099 | 56 | 45 | 0.0820 | 37 | 0.1040 | 35 | 0.1100 |
#4 | 0.112 | 36 | 44 | 0.0860 | 32 | 0.1160 | 30 | 0.1285 |
#4 | 0.112 | 40 | 43 | 0.0890 | 32 | 0.1160 | 30 | 0.1285 |
#4 | 0.112 | 48 | 42 | 0.0935 | 32 | 0.1160 | 30 | 0.1285 |
#5 | 0.125 | 40 | 38 | 0.1015 | 30 | 0.1285 | 29 | 0.1360 |
#5 | 0.125 | 44 | 37 | 0.1040 | 30 | 0.1285 | 29 | 0.1360 |
#6 | 0.138 | 32 | 36 | 0.1065 | 27 | 0.1440 | 25 | 0.1495 |
#6 | 0.138 | 40 | 33 | 0.1130 | 27 | 0.1440 | 25 | 0.1495 |
#8 | 0.164 | 32 | 29 | 0.1360 | 18 | 0.1695 | 16 | 0.1770 |
#8 | 0.164 | 36 | 29 | 0.1360 | 18 | 0.1695 | 16 | 0.1770 |
#10 | 0.190 | 24 | 25 | 0.1495 | 9 | 0.1960 | 7 | 0.2010 |
#10 | 0.190 | 32 | 21 | 0.1590 | 9 | 0.1960 | 7 | 0.2010 |
#12 | 0.216 | 24 | 16 | 0.1770 | 2 | 0.2210 | I | 0.2280 |
#12 | 0.216 | 28 | 14 | 0.1820 | 2 | 0.2210 | I | 0.2280 |
#14 | 0.242 | 20 | 10 | 0.1935 | D | 0.2460 | F | 0.2570 |
#14 | 0.242 | 24 | 7 | 0.2010 | D | 0.2460 | F | 0.2570 |
1/4 | 0.250 | 20 | 7 | 0.2010 | F | 0.2570 | H | 0.2660 |
1/4 | 0.250 | 28 | 3 | 0.2130 | F | 0.2570 | H | 0.2660 |