This metal connector was made in two parts. The base tube was designed to take a length of safety fuze. This would be inserted up through the split parts. Whem screwed back to the upper tube , the 3 metal claws would fasten the safetyfuze. The upper tube was threaded to recieve all standard-threaded igniters.

Showed in the picture is the connector used with a ZDSCH ANZ29.

The connector can be used as shown below. ANZ29-connector-lengthsafetyfuze-adapter-sprengkapsel No.8-charge.