Go gauge for caps on finished lamps E17, 7006-27K-1

go gauge for caps on finished lamps E17, 7006-27K-1 

Purpose: 

To check the maximum dimensions of the screw thread and dimension T1 minimum of E17 caps on finished lamps. 

Testing: 

When the cap on a finished lamp has been screwed into the gauge as far as it will go, the centre contact shall touch surface X. When the lamp is being removed from the gauge, at least two full turns shall be required to disengage the threads.