Historical
DIN 2285-2:2008
Geometrical product specifications (GPS) - "GO" screw ring gauges for ISO metric screw threads - Part 2: Nominal diameter over 50 mm up to 200 mm, precision mechanics (Foreign Standard)
This standard specifies the sizes for "GO" screw ring gauges for the precision mechanics for gauging of ISO metric screw threads with the basic profile according to DIN ISO 68-1 and a nominal profile according to DIN 13-19.
Deutsches Institut für Normung [din]