Bolt lenth change as per desparam of flane thickness

Dear All
lIm using old bolting method, Flange thickness made as desparam. After changing desparam value in design module, it is not giving bol lenth as per the new value in iso extraction.
Please let me know how I vary the bolt lenth as I change desparam value for Flange thickness.

Regards

Dear All
lIm using old bolting method, Flange thickness made as desparam. After changing desparam value in design module, it is not giving bol lenth as per the new value in iso extraction.
Please let me know how I vary the bolt lenth as I change desparam value for Flange thickness.

Regards