well,thanks for all of you Friends....
By the way,a friend advised me for using a "shaft" with a "Nut" ......
Its mechanism is to be joined with a terminal on the load cell (from up)
and be joined with a ring in the bottom part of the device,
then we can
increase the tension by rotating the nut causing a tension on the load
cell.....
Can anybody inform me if this device exist or not ???
Thanks Friends for your consults

Best Regards...
Mohammed Gouda
