atornillar

v. screw, turn; harass

= clamp, bolt, screw.
Ex: The original is clamped around the left hand cylinder and a special stencil fastened around the other cylinder.
Ex: Bookstacks should be secured by bracing across the top or bolting to the floor or ceiling.
Ex: This was done by laying the right number of letters on their sides in the stick, pushing the sliding bar up to them and screwing it up tight.