Threaded separator of defined length used to raise one assembly above another.
1NOTES: NASCAR confiscated the left-front jack screw from the No.
2Jack screwed up his eyes tight and bellowed at the ceiling in frustration.
3For piston rods, or for work such as cutting jack screws, this lathe is very useful.
4Water put into the shaft helped somewhat, but the great stress to be exerted had to be effected by means of powerful jack screws.