Connection bolt size of transformer bushing

[ingar]

Hi,
We have an old transformer with 33kV bushing of type DIN 30 NF 1000. Could someone please tell us which bolt size this have (in order to buy the correct clamp)?

 

[jbartos]

Suggestion: Please, post nameplate(s) data.

 

[ingar]

Hi again,
I do not have nameplate and the bushing is in Africa (I am in Norway). The 132kV bushings are of ABB make but the 33kV I do not know? The Transformer is made by Pauwels.