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MARYLAND METRICS
THREAD DATA CHARTS

Tire Valve Screw Thread ISO 4570


Desig-nation Nominal dimensions   Desig-nation Nominal dimensions  
  Diameter x Pitch (mm) TPI   Diameter x Pitch (mm) TPI
5V1 5.20.705 36 13V1 12.61.270 20
5V2 5.21.058 24 13V2 12.70.794 32
6V1 60.80 31.75 16V1 15.80.941 27
8V1 7.70.794 32 15V1 151.00 25.4
8V2 7.91.058 24 17V2 17.51.058 24
9V1 9.40.794 32 17V3 17.51.588 16
10V1 9.61.00 25.4 17V1 171.00 25.4
10V2 10.30.907 28 19V1 191.588 16
11V1 11.11.270 20 20V1 20.51.00 25.4
12V1 12.20.977 26      

    Limit dimensions of screw Limit dimensions of nut
Desig-nation Nominal dimensions Major diameter Pitch diameter Minor diameter Major diameter Pitch diameter Minor diameter
  Diameter x Pitch (mm) d max. Tolerance d min. d2 max. Tolerance d2 min.     D2 max. Tolerance D2 min. D1 max. Tolerance D1 min.
5V1 5.2x0.705 5.232 0.203 5.029 4.775 0.101 4.674 4.496 5.334 5.004 0.135 4.869 4.801 0.204 4.597
5V2 5.2x1.058 5.220 0.180 5.040 4.705 0.150 4.555 4.200 5.370 4.865 0.105 4.760 4.600 0.200 4.400
6V1 60.80 6.030 0.200 5.830 5.670 0.150 5.520 5.385 6.160 5.830 0.105 5.725 5.540 0.100 5.440
8V1 7.7x0.794 7.747 0.203 7.544 7.239 0.159 7.080 6.909 7.798 7.468 0.184 7.284 7.239 0.203 7.036
8V2 7.9x1.058 7.909 0.182 7.727 7.221 0.093 7.128 6.611 7.938 7.371 0.121 7.250 7.035 0.253 6.782
9V1 9.423x0.794 9.423 0.152 9.270 8.981 0.129 8.852 8.527 9.525 9.121 0.111 9.010 8.865 0.204 8.661
10V1 9.61.00 9.650 0.100 9.550 9.310 0.100 9.210 8.552 9.800 9.480 0.100 9.380 8.900 0.150 8.750
10V2 10.30.907 10.312 0.212 10.100 9.760 0.184 9.576 9.180 10.414 9.940 0.125 9.815 9.550 0.200 9.350
11V1 11.11.270 11.079 0.205 10.874 10.254 0.107 10.147 9.522 11.113 10.424 0.137 10.287 10.033 0.304 9.729
12V1 12.20.977 12.243 0.213 12.030 11.614 0.159 11.455 10.990 12.319 11.794 0.125 11.669 11.379 0.203 11.176
13V1 12.61.270 12.667 0.206 12.461 11.841 0.109 11.732 11.110 12.700 12.017 0.142 11.875 11.608 0.280 11.328
13V2 12.70.794 12.674 0.151 12.523 12.159 0.089 12.070 11.701 12.700 12.298 0.113 12.185 12.039 0.202 11.837
15V1 151.00 14.900 0.105 14.795 14.310 0.105 14.205 13.552 15.137 14.485 0.105 14.380 13.950 0.200 13.750
16V1 15.80.941 15.847 0.170 15.677 15.235 0.097 15.138 14.694 15.875 15.389 0.126 15.263 15.088 0.220 14.859
17V1 171.00 16.900 0.105 16.795 16.310 0.105 16.205 15.552 17.137 16.485 0.105 16.380 15.950 0.200 15.750
17V2 17.51.058 17.432 0.182 17.250 16.743 0.100 16.643 16.134 17.463 16.906 0.131 16.775 16.560 0.253 16.307
17V3 17.51.588 17.426 0.237 17.189 16.395 0.121 16.274 15.478 17.463 16.588 0.156 16.432 16.103 0.355 15.748
19V1 191.588 19.011 0.237 18.774 17.980 0.126 17.854 17.063 19.050 18.183 0.164 18.019 17.678 0.355 17.323
20V1 20.51.00 20.400 0.110 20.290 19.810 0.110 19.700 19.052 20.642 19.995 0.110 19.885 19.450 0.200 19.250

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