[플랜트교육] 볼트규격으로 렌치(스패너) 사이즈 쉽게 알기 (실전꿀팁)~!!!

A wrench or spanner is a tool used to provide grip and mechanical advantage in applying torque to turn objects—usually rotary fasteners, such as nuts and bolts—or keep them from turning In the UK, Ireland, Australia, and New Zealand spanner is the standard term The most common shapes are called open-ended spanner and ring spanner The term wrench is generally used for tools that turn non-fastening devices (e g tap wrench and pipe wrench), or may be used for a monkey wrench—an adjustable pipe wrench [1] In North American English, wrench is the standard term The most common shapes are called open-end wrench and box-end wrench In American English, spanner refers to a specialized wrench with a series of pins or tabs around the circumference (These pins or tabs fit into the holes or notches cut into the object to be turned) In American commerce, such a wrench may be called a spanner wrench to distinguish it from the British sense of spanner Higher quality wrenches are typically made from chromium-vanadium alloy tool steels and are often drop-forged They are frequently chrome-plated to resist corrosion and for ease of cleaning Hinged tools, such as pliers or tongs, are not generally considered wrenches in English, but exceptions are the plumber wrench (pipe wrench in British English) and Mole wrench (sometimes Mole grips in British English) The word can also be used in slang to describe an unexpected obstacle, for example, "He threw a spanner in the works" (in U S English, "monkey wrench") Width across flats is the distance between two parallel surfaces on the head of a screw or bolt, or a nut, mostly for torque transmission by positive locking The term width across flats (AF) is used for the following forms: 2-socket = round material with two surfaces 4-socket = profile square section 6-socket, 8-square = regular polygons The width across flats indicates the "size" of the spanner It is imprinted on the spanners in millimeter (mm) values Older English and current American spanners (wrenches) have inch sizes that are imprinted in intermediate sizes in fractions The two systems are in general not compatible, which can result in rounding of nuts and bolts (i e using a 13 mm spanner in place of a 1⁄2 in (12 7 mm)) There are some exceptions with a few sizes being close enough in sizes to interchange This includes 19 mm and ​3⁄4 in (19 05 mm), which are interchangeable for most purposes Sizes that may interchange, depending on the precision needed, includes 2 mm (close to ​5⁄64 in (1 98 mm)), 4 mm (close to ​5⁄32 in (3 97 mm)) and 8 mm (close to ​5⁄16 in (7 94 mm)) The monkey wrench is a type of adjustable wrench, a 19th century American refinement of 18th-century English coach wrenches It was widely used in the 19th and early 20th centuries but is now seldom used in the mechanical trades, having been mostly replaced by the newer style of shifting (adjustable) spanner/wrench It is still of interest as an antique among tool collectors and is still occasionally used in maintenance and repair when it happens to be convenient The term monkey wrench is also sometimes used loosely, usually by non-tradespeople, to refer to the pipe wrench (owing to their broadly similar shapes), but tradespeople (plumbers, pipefitters) usually speak more precisely than that A wrench with smooth jaws (no teeth) is not used for turning threaded pipe These are also known as a Ford wrench owing to this type of wrench being included in the tool kit supplied with every Ford Model A They are still used by aircraft technicians, mainly when large but low torque fasteners are involved #에듀넷 #티클리어 #기술사 #플랜트엔지니어 #플랜트산업협회 #KOPIA #한국조선해양플랜트협회 #한국플랜트학회 #산업통상자원부 #한국엔지니어링협회 #삼성에이앤아이 #삼성물산 #대림건설 #롯데건설 #롯데케미칼 #해외취업 #sk에너지 #sk화학 #한화건설 #SK건설 #GS건설 #현대엔지니어링 #현대건설 #KBR #FLOUR #BECHTEL #upstream #downstream #onshore #offshore #용접기능사 #용접기능장 #용접산업기사 #용접기사 #특수용접 #용접기술사 #플랜트교육 #플랜트강의 #해외건설 #해외프로젝트 #수능인강 #중등인강 #깨봉 #메가스터디 #1타강사 #수능특강 #산업인력공단 #특강 #수능특강 #일타강사 #검정고시 #추천인강 #화공플랜트 #발전플랜트 #해양플랜트 #DT #EPC #BTS #bighit #배관기초교육 #배관정복 #배관강의 #배관강좌 #플랜트학과 #무료교육 #무료강의 #온라인교육 #국비교육 #국비무료 #플랜트산업 #중동취업 #해외취업 #국비지원무료교육 #억대연봉직업 #bolt #metric #size #wrench #spanner #몽키스패너 #렌치 #스패너 #연장툴 #렌치스패터차이점 #볼트호칭 #스터드볼트 #머신볼트 #studbolt #machinebolt #bolt #Msize #formula