shut+firmly
131screw — screw1 [ skru ] noun count * 1. ) a thin pointed piece of metal used for fastening one thing to another. It has a raised twisted part on it called a thread. You push and turn it with a screwdriver instead of hitting it with a hammer like a nail:… …
132clamp — [[t]klæ̱mp[/t]] clamps, clamping, clamped 1) N COUNT A clamp is a device that holds two things firmly together. 2) VERB When you clamp one thing to another, you fasten the two things together with a clamp. [V n to n] Somebody forgot to bring… …
