powercoil.com.au wire thread insert system

®
BA / BSC / UN-8 PITCH
A Minor Diameter
B Major Diameter
C Pitch Diameter of Tapped Hole
D Pitch Diameter of Installed Insert
E Installed Insert Internal Diameter - min.
FC Free Coil Diamater of Un-installed Insert
BA / BSC / UN-8 PITCH
S Drilling Length - minimum
T Tapping Length - minimum
Q Nominal Length
NC
Number of Coils in Un-installed Insert
counted 90º from tang
Ø FC
NC
IMPORTANT The success of any drill and tapping operation is dependant upon many factors –type of material being cut, cutting speed, coolant,equipment
being used – and it is not possible to give specific drill sizes for each material. Drill sizes shown are recommendations only and PowerCoil would strongly
suggest that independent testing be performed for specific and critical applications.
When using wire thread inserts it is important that the drilling and tapping diameters and lengths listed below are adhered to.
The figures outlined in these tables encompass effective free coil tolerances for most globally recognized standards and manufacturers, including those
of reduced diameter wire thread inserts.
PowerCoil wire thread inserts can be manufactured to different standards upon request. Technical data on these standards can be obtained from our
website – www.powercoil.com.au.
S (Drilling Length – min.) T (Tapping Length – min.) Q (Nominal Length) NC (Number of Coils) - Max / Min
1.0D 1.5D 2.0D 2.5D 3.0D 1.0D 1.5D 2.0D 2.5D 3.0D 1.0D 1.5D 2.0D 2.5D 3.0D 1.0D 1.5D 2.0D 2.5D 3.0D
0.204 0.259 0.314 0.369 0.424 0.183 0.238 0.293 0.348 0.404 0.110 0.165 0.220 0.275 0.331 3.60 / 3.30 6.20 / 5.60 8.70 / 7.90 11.20 / 10.20 13.80 / 12.50
0.230 0.293 0.356 0.419 0.482 0.207 0.270 0.333 0.396 0.459 0.126 0.189 0.252 0.315 0.378 3.80 / 3.40 6.40 / 5.80 9.00 / 8.10 11.60 / 10.50 14.20 / 12.90
0.259 0.329 0.400 0.471 0.542 0.233 0.303 0.374 0.445 0.516 0.142 0.212 0.283 0.354 0.425 3.80 / 3.50 6.40 / 5.80 9.10 / 8.20 11.70 / 10.60 14.40 / 13.00
0.291 0.371 0.452 0.533 0.613 0.262 0.343 0.423 0.504 0.585 0.161 0.242 0.323 0.403 0.484 3.90 / 3.60 6.70 / 6.00 9.40 / 8.50 12.10 / 10.90 14.80 / 13.40
0.328 0.421 0.513 0.606 0.698 0.297 0.389 0.482 0.574 0.667 0.185 0.277 0.370 0.462 0.555 4.20 / 3.80 6.90 / 6.30 9.80 / 8.80 12.60 / 11.40 15.40 / 13.90
0.368 0.472 0.576 0.681 0.785 0.333 0.437 0.541 0.646 0.750 0.209 0.313 0.417 0.522 0.626 4.20 / 3.80 7.10 / 6.40 9.90 / 9.00 12.80 / 11.60 15.60 / 14.10
0.413 0.531 0.649 0.768 0.886 0.374 0.492 0.610 0.728 0.846 0.236 0.354 0.472 0.590 0.709 4.30 / 3.90 7.20 / 6.60 10.10 / 9.20 13.00 / 11.80 16.00 / 14.50
S (Drilling Length – min.) T (Tapping Length – min.) Q (Nominal Length) NC (Number of Coils) - Max / Min
1.0D 1.5D 2.0D 2.5D 3.0D 1.0D 1.5D 2.0D 2.5D 3.0D 1.0D 1.5D 2.0D 2.5D 3.0D 1.0D 1.5D 2.0D 2.5D 3.0D
0.33 0.42 0.52 0.61 0.70 0.30 0.39 0.48 0.58 0.67 0.187 0.281 0.375 0.469 0.562 4.10/3.70 6.90/6.20 9.70/8.70 12.50/11.20 15.30/13.70
0.42 0.55 0.67 0.80 0.92 0.38 0.51 0.63 0.76 0.88 0.250 0.375 0.500 0.625 0.750 4.60/4.10 7.60/6.90 10.70/9.60 13.80/12.30 16.80/15.10
0.49 0.64 0.80 0.95 1.11 0.45 0.60 0.76 0.92 1.07 0.312 0.469 0.625 0.781 0.937 6.20/5.50 10.00/9.00 13.90/12.50 17.80/16.00 21.60/19.40
0.55 0.74 0.92 1.11 1.30 0.51 0.70 0.88 1.07 1.26 0.375 0.562 0.750 0.937 1.125 7.80/7.00 12.40/11.20 17.10/15.40 21.70/19.60 26.40/23.80
0.61 0.83 1.05 1.27 1.49 0.57 0.79 1.01 1.23 1.45 0.437 0.656 0.875 1.094 1.312 9.40/8.40 14.80/13.40 20.30/18.30 25.80/23.30 31.20/28.20
0.67 0.92 1.17 1.42 1.67 0.63 0.88 1.13 1.38 1.63 0.500 0.750 1.000 1.250 1.500 11.00/9.90 17.20/15.60 23.50/21.20 29.80/26.90 36.00/32.60
0.74 1.02 1.30 1.58 1.86 0.70 0.98 1.26 1.54 1.82 0.562 0.844 1.125 1.406 1.687 12.60/11.40 19.70/17.80 26.70/24.20 33.80/30.50 40.90/36.90
0.80 1.11 1.42 1.74 2.05 0.76 1.07 1.38 1.70 2.01 0.625 0.937 1.250 1.562 1.875 14.20/12.80 22.00/19.90 29.90/27.10 37.80/34.20 45.70/41.30
0.92 1.30 1.67 2.05 2.42 0.88 1.26 1.63 2.01 2.38 0.750 1.125 1.500 1.875 2.250 17.40/15.70 26.90/24.30 36.30/32.90 45.80/41.50 55.30/50.10
1.19 1.69 2.19 2.69 3.19 1.15 1.65 2.15 2.65 3.15 1.000 1.500 2.000 2.500 3.000 21.80/19.80 33.50/30.40 45.30/41.00 57.00/51.60 68.70/62.20
Optimum Thread
performance with
Wire Thread Inserts
is achieved when
the inserts are
installed 1/2 to 1
pitch below the
surface of the
Tapped Hole. This
means that the
actual length of an
installed insert is
equal to dimension
DL less 1/2 to 1
pitch. Dimensions
AL and CL allow for
tap end clearance
of finishing Taps.
When using
Bottoming and
Spiral Flute Taps
these dimensions
maybe reduced by
an amount equal to
2 thread pitches.
Any counterbore
depths must be
added to these
dimensions.
S (Drilling Length – min.) Int/Bott T (Tapping Length – min.) Int Q (Nominal Length) NC (Number of Coils) - Max / Min
1.0D 1.5D 2.0D 2.5D 3.0D 1.0D 1.5D 2.0D 2.5D 3.0D 1.0D 1.5D 2.0D 2.5D 3.0D 1.0D 1.5D 2.0D 2.5D 3.0D
1.69 2.25 2.81 3.38 3.94 1.56 2.13 2.69 3.25 3.81 1.125 1.688 2.250 2.81 3.38 7.50/7.10 12.00/11.50 16.60/15.80 21.10/20.10 25.60/24.50
1.81 2.44 3.06 3.69 4.31 1.69 2.31 2.94 3.56 4.19 1.250 1.875 2.500 3.13 3.75 8.30/8.10 13.30/12.90 18.30/17.70 23.30/22.60 28.20/27.40
1.94 2.62 3.31 4.00 4.69 1.81 2.50 3.19 3.88 4.56 1.375 2.062 2.750 3.44 4.13 9.30/9.00 14.80/14.30 20.20/19.60 25.70/24.90 31.20/30.20
2.06 2.81 3.56 4.31 5.06 1.94 2.69 3.44 4.19 4.94 1.500 2.250 3.000 3.75 4.50 10.30/10.00 16.20/15.80 22.20/21.50 28.10/27.30 34.10/33.10
2.19 3.00 3.81 4.63 5.44 2.06 2.88 3.69 4.50 5.31 1.625 2.438 3.250 4.06 4.88 11.20/10.50 17.70/16.40 24.10/22.40 30.50/28.40 37.00/34.30
2.31 3.19 4.06 4.94 5.81 2.19 3.06 3.94 4.81 5.69 1.750 2.625 3.500 4.38 5.25 12.20/11.40 19.20/17.80 26.10/24.20 33.00/30.70 39.90/37.10
2.44 3.37 4.31 5.25 6.19 2.31 3.25 4.19 5.13 6.06 1.875 2.812 3.750 4.69 5.63 13.20/12.40 20.60/19.30 28.10/26.20 35.50/33.20 42.90/40.10
2.56 3.56 4.56 5.56 6.56 2.44 3.44 4.44 5.44 6.44 2.000 3.000 4.000 5.00 6.00 14.20/13.40 22.10/20.90 30.00/28.40 38.00/35.90 45.90/43.30
powercoil.com.au
®
wire thread insert system
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