A screw is a type of fastener, in some ways similar to a bolt (see Differentiation between bolt and screw below), typically made of metal, and characterized by a helical ridge, known as a male thread (external thread). Screws are used to fasten materials by digging in and wedging into a material when turned, Screw definition is - a simple machine of the inclined plane type consisting of a spirally grooved solid cylinder and a correspondingly grooved hollow cylinder into which it fits. How to use screw in a sentence. Screw definition, a metal fastener having a tapered shank with a helical thread, and topped with a slotted head, driven into wood or the like by rotating, especially by means of a screwdriver. See more.

screw left to right: round-head machine screw, flat-head wood screw, and round-head wood screw screw (skro͞o) n. 1. a. A cylindrical rod incised with one or more helical or advancing spiral threads, as a lead screw or worm screw. b. The tapped collar or socket that receives this rod. 2. A screw is a mechanism that converts rotational motion to linear motion, and a torque (rotational force) to a linear force. It is one of the six classical simple machines. heremon form consists of a cylindrical shaft with helical grooves or ridges called threads around the outside. screw definition: 1. a thin, pointed piece of metal with a raised edge twisting round along its length and a flat top with a cut in it, used to join things together, especially pieces of wood 2. an act of twisting or turning done to fasten or tighten something: 3.

Causes of screw slippage can be traced to high backpressure, too-hot or too-cold rear barrel section, a worn barrel or screw, too-shallow feed section on the screw, improper hopper design, an empty or blocked hopper, wet resin, excessive lubricant in the resin, fines, or poorly cut resin or regrind. Screw Products Inc. specializes in star drive stainless steel and heat treated wood screws for decks, log homes, remodeling, heres, docks, roofing, boardwalks and more! 3/4 inch-16 inch sizes available. Call toll free: 1.877.844.8880.