German 3,7cm Kopfzünder (?)

[Bever]

In attachment :
3 images.


Extra details : M28 x 1,5
Material : Steel , inside = Zinc
Bottom has multiple rounded openings , as seen on the images.


Can anyone tell me more about this particular fuze?


thank you

 

[rigby]

Looks like a KZ20 St for 3,7cm and 5cm.

 

[Nabob]

Yes, sure looks like that.
Unfortunately the only info I have is from the book by Mr Koch.

Bob

 

[Bever]

Thank you !

 

[MINENAZ16]

Herewith the fuze KZ20 Stahl :