Determination of Thread Types
Choosing a suitable fi tting, screw cap or multiple distributor with the correct thread type and size is not as easy as it might seem.
Please use a sliding calliper for the determination
of a thread type. Use it for the determination of the
thread O. D. and the thread pitch. The pitch is the distance from one thread crest to the other as shown on
our schematic drawings. Now the thread type can be
determined by comparing the original thread with our
fi gures. Once you have found a similar type, the actual
thread size is identifi ed by comparing the measured
dimensions with the typical dimensions stated in the
related chart.
Of course, we will help you if you still have problems
in determining your thread. Just send us a sample or
counterpiece, we will be glad to help you with your
choice. But please understand that we are not able
to determine threads on faxed or scanned copies or
pictures.
Important: Due to tolerances in production of diff erent manufacturers, the dimensions of vessels can
vary of up to 0.5 mm.