Specialist tap / die

[D Rous]

Hi all,

I'm working on a current project whereby I need to find or make a tap that can connect the Knuckle Thread DIN 168 especially for glass containers (male) to a tapped nylon / steel with the correct counterpart.

I've searched all over for a conversion from Knuckle Thread DIN 168 (GL) range to any other type but I can't find anything suitable. Does anyone here know of any reliable specialist thread producers or someone who could help?

This is my source for thread info — 

https://www.gewinde-normen.de/en/knuckle-thread-din-168.html

The ultimate goal is to be able to connect glass forms with GL thread to a metal arm, threading the glass on and off whenever needed.

Any leads would be greatly appreciated!
D

 

[3DDave]

https://www.westtool.com/customer/wetosu/vendor/catalogs/emuge/501_catalog_2014/index.html#128/z

(page 128) seems to offer custom taps as does EMUGE.

I expect most users of these threads will be machining them out of graphite for EDM of dies rather than using taps.

 

[SwinnyGG]

You're not going to find DIN 168 taps.

Either buy a lab thread to tube adapter, such as:

http://shop.llg.de/info1204_Laborat...L_14_lang_UK.htm?UID=55005c546839000000000000

Or pay a machine shop to single-point-thread your parts to the correct threadform.

 

[D Rous]

Thank you both for the feedback — I've written to EMUGE to see if they're able to help with a custom tap.
I'm designing a lighting system and want to be able to tap the tubing myself and screw the glass in.
I can probably design the glass with a fixture that doesn't require a screw thread but feel this is the most intuitive and reliable for the long term. Any other thoughts on glass connections are much appreciated, thanks!