[Zollgewinde d1: G1 & 8]
The dimensions of the sealing screws GN 749 largely correspond to DIN 908, but deviating from the DIN version, they have an elastic seal (rubber). This is embedded in a radial and plane-side puncture, so the sealing ring cannot be lost and cannot be squeezed out when tightening. The information on the permissible operating pressure is non-binding guidelines excluding any liability. They generally do not represent a quality commitment. Whether a product is suitable for the respective use must be checked by the user in each individual case.