The head's tension can be adjusted by loosening or tightening the rods. Alternating between tightening and loosening can free especially stubborn lug nuts. The pegs are used to tune the cello by either tightening or loosening the string. Typically each president will issue a new executive order, either tightening classification or loosening it. Besides securing the shoe, this also takes up the length of shoelace exposed after tightening. Spare rope can be passed up to wrists tightening the tie. They know the noose is tightening and they've gone off the road, across the Badlands. This surgery has been described as vaginal tightening or rejuvenation. Chrysler was also slow to adapt to a gradual tightening of anti-pollution regulations. Curve maintenance especially for transit services includes gauging, fastener tightening, and rail replacement. Finer threads develop greater preload with less tightening torque. Verifying adequate tightening torque requires calibrated installation tools and proper training. Setting a knot is the process of tightening it. Collagen cross-linking then causes a progressive skin tightening. Banks will react by tightening their credit conditions.