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Tire Valve Screw Thread Data per DIN 7756

THREAD DATA CHARTS

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Tire Valve Screw Thread per DIN 7756
Tire Valve Screw Thread

DIN 7756 Tire Valve Screw Thread
Thread
Designation
Bolt Nut Pitch TPI
Major
Diameter
Minor
Diameter
Major
Diameter
Minor
Diameter
max. min. max. min. max. min. max. min.
Vg5 5.200 5.100 4.400 4.300 5.520 5.420 4.700 4.600 0.706 36
Vg5.2 5.280 5.180 3.900 3.800 5.680 5.580 4.300 4.200 1.058 24
Vg6 6.030 5.930 5.130 5.030 6.280 6.100 5.400 5.300 0.794 32
Vg7.8                 0.847 30
Vg8 7.747 7.620 6.631 6.504 8.061 7.934 6.945 6.818 0.794 32
Vg9.6 9.650 9.550 8.670 8.552 9.800 9.730 8.900 8.750 1.000 25
Vg10 10.338 10.211 9.062 8.935 10.664 10.537 9.388 9.261 0.907 28
Vg12 12.243 12.091 10.869 10.717 12.601 12.449 11.227 11.075 0.977 26
Tyre Valve Thread (dimensions above given in millimeters except TPI) per DIN 7756
 

NOTE:
Tire Valves Screw Threads are a hybrid between the UN-series and M-series series screw theads.Tire Valves Screw Threads have developed/evolved over the years outside of published specifications and due to backward engineering of competitor products. As a result, there are many slight variations of the Tire Valves Screw Threads; all of which seem to interchange. Subsequently; Tire Valves Screw Threads have been/are codified in DIN-7756 (German Standard) and BS-811 (British Standard) and ISO-4570 (International Standard) and other country specifications; all of which have slight variations on the theme. We understand that ISO4570 was published with the intent of harmonizing the numerous divergent specifications into one internationally interchangeable uniform Tire Valves Screw Thread size chart/design/designation. We think it is wise of any manufacturer to use the ISO 4570 designation for Tire Valves Screw Threads to assure international interchangeability of their products.
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Disclaimer:
This data is provided for general information only. The intention is to provide accurate information; regardless; errors may exist in the supplied information. If accuracy is critical, base your final decisions on the data provided in the root documents: BS811; DIN 7756; and ISO4580 which are copyrighted document. To purchase a copy visit an Authorized Reseller.

Comments:
Original Posting: 7/14/2009
Last Revision: 8/7/2018
Error corrections in, or comments about, the above data can be sent to: office@gagecrib.com

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