E40 7006-27-7 Lamp holder pass gauge

7006-27-7 Lamp cap pass gauge E40 lamp cap thread maximum size tester
E40 lamp holder and holder gauge technical standard: GB 1483.1-2008; IEC 60061-3:2004
E40 screw lamp holder, lamp holder gauge, suitable for E40 screw lamp holder electric light source bulb quality detection, its structure and related waveform (such as thread waveform) through computer calculation and optimization, and then through the processing of computer machine tools, to achieve a high degree of precision and beautiful, the material is made of high hard alloy with strong anti-rust ability.?

7006-27-7 Lamp cap pass gauge E40 lamp cap thread maximum size tester
Purpose:

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

7006-27-7 Lamp cap pass gauge E40 lamp cap thread maximum size tester
Testing :

When the cap on a finished lamp has been screwed into the gauge as far as it will go, the center contact shall be co-planar with, or project beyond, surface X.

The shape part of the edge of the thread shall be broken with radius of 0.2mm to 0.3mm.

7006-27-7 Lamp cap pass gauge E40 lamp cap thread maximum size tester
Purpose:

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

7006-27-7 Lamp cap pass gauge E40 lamp cap thread maximum size tester
Testing :

When the cap on a finished lamp has been screwed into the gauge as far as it will go, the center contact shall be co-planar with, or project beyond, surface X.