square-thread screw

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• square thread — /skwɛə ˈθrɛd/ (say skwair thred) noun a screw thread with a castellated thread profile, the width and height of the thread being equal to the width of the valley between the threads …  

• square thread — noun : a screw thread so made that the sides, root, and crest of any section formed by a plane that passes through the thread axis are all equal theoretically to one half the pitch …   Useful english dictionary

• Screw — This article is about the fastener. For other uses, see Screw (disambiguation). Screws come in a variety of shapes and sizes for different purposes. U.S. quarter coin (diameter 24 mm) shown for scale. A screw, or bolt, is a type of fastener… …   Wikipedia

• Screw thread — Internal and external threads illustrated using a common nut and bolt. The screw and nut pair can be used to convert torque into linear force. As the screw (or bolt) is rotated, the screw moves along its axis through the fixed nut, or the non… …   Wikipedia

• screw thread — noun the raised helical rib going around a screw • Syn: ↑thread • Hypernyms: ↑rib • Part Holonyms: ↑screw * * * noun 1. : the projecting helical rib …   Useful english dictionary

• screw — screwable, adj. screwer, n. screwless, adj. screwlike, adj. /skrooh/, n. 1. 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, esp. by means of a screwdriver. 2 …   Universalium

• Acme thread form — Acme threads are a common screw thread profile, which offers high strength with ease of machining and assembly. Typically found where large loads or accuracy is required as in vises or the lead screw of a lathe. Standardized variations include… …   Wikipedia

• ISO metric screw thread — The ISO metric screw threads are the world wide most commonly used type of general purpose screw thread.[1] They were one of the first international standards agreed when the International Organization for Standardization was set up in… …   Wikipedia

• Buttress thread — form refers to one of several screw thread profiles. Buttress thread in machineryIn machinery, buttress thread is a thread form designed to handle extremely high axial thrust in one direction. (The resistance to axial thrust in the other… …   Wikipedia

• buttress thread — noun : a screw thread in which the driving face is made perpendicular to the axis of the screw (as in a square thread) while the back face makes an angle with the axis (as in a V thread) in order to combine efficiency in the transmission of power …   Useful english dictionary

• List of screw drives — Contents 1 Common types 1.1 External types 1.1.1 Square 1.1.2 Hex …   Wikipedia