TAPTITE 2000 Thread-Rolling Fasteners for Metal

TAPTITE 2000 ®
STANDARD FASTENERS
RECOMMENDED PILOT HOLE SIZES IN STEEL NUT MEMBERS – METRIC SIZES (mm)
Application Light Medium-Light Medium-Heavy Full Strength Extended
Duty Class 0.3 Diameters of Material 0.5 Diameters of Material 0.75 Diameters of Material 1.0 Diameters of Material 1.25 Diameters of Material
Percentage
of Thread
90% 80% 70% 65% 60%
Nominal Material Pilot Drill Material Pilot Drill Material Pilot Drill Material Pilot Drill Material Pilot Drill
Size Thckns. Hole Size Thckns. Hole Size Thckns. Hole Size Thckns. Hole Size Thckns. Hole Size
M2.5 x 0.45 0.5 - 0.9 2.24 2.25 0.9 - 1.5 2.27
#43
2.26
1.5 - 2.1 2.3 2.3 2.1 - 2.7 2.31 2.3 2.7 - 3.5 2.32 2.3
M3 x 0.5 0.5 - 1.1 2.71
#36
7/64
7/64
1.1 - 1.7 2.74 2.75 1.7 - 2.7 2.77
2.7 - 3.3 2.79
2.71 2.78 2.78
3.3 - 4.0 2.8 2.8
M3.5 x 0.6 0.6 - 1.4 3.15
1/8
#30
1.4 - 2.0 3.19 3.2 2.0 - 2.9 3.23 3.25 2.9 - 3.8 3.25 3.25 3.8 - 4.5 3.27
3.18 3.27
M4 x 0.7 0.8 - 1.4 3.59 3.6 1.4 - 2.4 3.64
#27
#26
2.4 - 3.3 3.68 3.7 3.3 - 4.4 3.7 3.7 4.4 - 5.5 3.73
3.66 3.73
M4.5 x 0.75 0.9 - 1.7 4.06
#21
4.04
1.7 - 2.7 4.11 4.1 2.7 - 3.9 4.16 4.2 3.9 - 4.9 4.18 4.2 4.9 - 6.4 4.21 4.2
M5 x 0.8 1.0 - 2.1 4.53 4.5 2.1 - 2.9 4.58 4.57 2.9 - 4.4 4.64
#14
4.62
4.4 - 5.9 4.66 4.65 5.9 - 7.1 4.69 4.7
M6 x 1.0 1.2 - 2.4 5.42
#3
7/32
2.4 - 3.6 5.48 5.5 3.6 - 4.9 5.55
5.41 5.56
4.9 - 6.9 5.58 5.6 6.9 - 8.1 5.61 5.6
M7 x 1.0 1.4 - 2.4 6.42 6.4 2.4 - 4.4 6.48 6.5 4.4 - 6.5 6.55
F
6.53
6.5 - 7.7 6.58 6.6 7.7 - 9.5 6.61 6.6
M8 x 1.25 1.6 - 3.1 7.27 7.25 3.1 - 4.9 7.35
L
M
4.6 - 6.9 7.43 7.4 6.9 - 8.9 7.47
7.37 7.49
8.9 - 10.9 7.51 7.5
M10 x 1.5 1.9 - 3.9 9.12
23/64
U
3.9 - 5.9 9.22 9.25 5.9 - 8.3 9.32 9.3 8.3 - 10.9 9.37
9.1 9.35
10.9 - 12.9 9.41 9.4
M12 x 1.75 2.4 - 4.9 10.98 11.0 4.9 - 7.4 11.09
7/16
7/16
7.4 - 10.5 11.2
11.11 11.11
10.5 - 14.5 11.26 11.3 14.5 - 17.0 11.31 11.3
RECOMMENDED PILOT HOLE SIZES IN STEEL NUT MEMBERS – INCH SIZES (in)
Application Light Medium-Light Medium-Heavy Full Strength Extended
Duty Class 0.3 Diameters of Material 0.5 Diameters of Material 0.75 Diameters of Material 1.0 Diameters of Material 1.25 Diameters of Material
Percentage
of Thread
90% 80% 70% 65% 60%
Nominal Material Pilot Drill Material Pilot Drill Material Pilot Drill Material Pilot Drill Material Pilot Drill
Size Thckns. Hole Size Thckns. Hole Size Thckns. Hole Size Thckns. Hole Size Thckns. Hole Size
2-56 .017-.034 0.0756 1.9mm . 034-.052 0.0767 1.95mm 5/64 #47
2mm
.052-.073 0.0779 .073-.095 0.0785 .095-.169 0.0790
0.0748 0.0763 0.0781 0.0785 0.0787
3-48 020-.040 0.8680 2.2mm #43
#43
.040-.059 0.0882
.059-.084 0.0895 .084-.110 0.0902 2.3mm .110-.141 0.0909 2.3mm
0.0866 0.089 0.089 0.0906 0.0906
4-40 .022-.045 0.0974
#40
#39
#39
#38
.045-.067 0.0990
.067-.095 0.1006 .095-.126 0.1014 .126-.157 0.1023 2.6mm
0.098 0.0995 0.0995 0.1015 0.0906
5-40 .025-.051 0.1104 2.8mm #33
#33
.051-.075 0.1120
.075-.106 0.1136 .106-.141 0.1144 2.9mm .141-.175 0.1153 2.9mm
0.1102 0.113 0.113 0.1142 0.1142
6-32 .028-.066 0.1197
#31
.066-.083 0.1218 3.1mm 1/8
1/8
.083-.117 0.1238 .117-.152 0.1248 .152-.193 0.1258 3.2mm
0.120 0.122 0.125 0.125 0.126
8-32 .033-.066 0.1457 3.7mm .066-.098 0.1478 3.75mm .098-.141 0.1498 3.8mm .141-1.80 0.1508 3.8mm #24
.180-.230 0.1518
0.1457 0.1476 0.1496 0.1491 0.152
10-24 .038-.079 0.1656
#19
#18
.079-.114 0.1683
.114-.162 0.1710 11/64 11/64 4.4mm
.162-.209 0.1724 .209-.266 0.1738
0.166 0.1695 0.1719 0.1719 0.1732
10-32 .038-.079 0.1717 11/64 #17
#16
#16
.079-.114 0.1738
.114-.162 .01758 .162-.209 0.1768 .209-.266 0.1778 4.5mm
0.1719 0.173 0.177 0.177 0.1772
12-24 .043-.086 0.1916
#11
#9
5mm #8
.086-.130 0.1943
.130-.184 0.1970 .184-.238 0.1984 .238-.302 0.1998 5.1mm
0.191 0.196 0.1969 0.199 0.2008
1/4-20 .050-.100 0.2208
#2
.100-.150 0.2240 5.7mm #1
.150-.213 0.2273 .213-.275 0.2289 5.8mm .275-.350 0.2309 5.8mm
0.221 0.2244 0.228 0.2283 0.2283
5/16-18 .062-.126 0.2800 7.1mm .126-.188 0.2836 7.2mm .188-.266 0.2872 7.3mm L
.266-.345 0.2890 .345-.438 0.2908 7.4mm
0.2795 0.2835 0.2874 0.29 0.2913
3/8-16 .075-.150 0.3384 8.6mm .150-.225 0.3425 8.7mm .225-.319 0.3466 8.8mm Size
.319-.413 0.3486 .413-.525 0.3506 8.9mm
0.3386 0.3425 0.3465 0.348 0.3504
7/16-14 .087-.174 0.3957
X
X
Y
13/32 13/32
.174-.262 0.4004
.262-.371 .04050 .371-.481 0.4073 .481-.612 0.4096
0.397 0.397 0.404 0.4063 0.4063
1/2-13 .100-.200 0.4550 29/64 29/64 15/32 15/32 15/32
.200-.300 0.4600
.300-.425 0.4650 .425-.550 0.4675 .550-.700 0.4700
0.4531 0.4531 0.4688 0.4688 0.468
6
APPLICATION DUTY CLASS - A general term used here to group material thickness in terms of screw diameters. For example, the average
material thickness listed under ”medium-heavy” equals 75% of the screw diameter.