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