Full Line Superex US by Superex. Hex key WikipediaAllen key redirects here. For the American politician, see Alan Keyes. For the computer scientist, see Alan Kay. For the telephone button, see Number sign. Hex keys of various sizes. Socket head screws of various sizes. Same hex key, different screw threads. A hex key, Allen key or Allen wrench is a tool used to drive bolts and screws with hexagonal sockets in their heads. Issuu is a digital publishing platform that makes it simple to publish magazines, catalogs, newspapers, books, and more online. Easily share your publications and get. Crosshead, CrossPoint, Cruciform, Square Drive Screws and Drivers These screw types have a shaped recess on the head and are driven by a crosshead screwdriver. The slot screw drive has a single slot in the fastener head and is driven by a common blade or flatbladed screwdriver. It was the first type of screw drive to be. This classic Craftsman Screwdriver Set is perfect for all of your needs. The Phillip blade tips are designed to ensure tighter tolerance and fit. Career Opportunities. Currently there are no open positions but Grobet USA is always seeking qualified potential candidates. If you are interested in possible. Triangle Head Screwdriver Canada' title='Triangle Head Screwdriver Canada' />The Allen name is a registered trademark, originated by the Allen Manufacturing Company of Hartford, Connecticut circa 1. Apex Tool Group, LLC. Its genericised use is discouraged by this company. BestiameLivestock A short, printable book about farm animals in Italian for early readers. The book has pages for the student to cut out, read, and color, with. Really Complete TOOL Manufacturers, Who Owns Whom Stores David Woodsmall. A hex key, Allen key or Allen wrench is a tool used to drive bolts and screws with hexagonal sockets in their heads. The Allen name is a registered trademark. Its been roughly two years since Microsoft released a new Windows Phone, and it looks like the company has basically decided its awful, singledigit market share. Thanks for visiting the Commodore 64 serial registry. This page is dedicated to keeping track of the C64s that are still alive and well and in the hands of. The standard generic name used in catalogues and published books and journals is hex key. NomenclatureeditExplained by the geographical and commercial history of the drive types development, the term hex key is best known as Allen in the USA The Allen name is a registered trademark, originated by the Allen Manufacturing Company of Hartford, Connecticut circa 1. Apex Tool Group, LLC, Inbus in Germany The term INBUS is a registered trademark, originated by the German company Bauer Schaurte in 1. INBUS IP Gmb. H, Breckerfeld, Germany and Unbrako key or wrench in Scandinavia. The synonym zeta key or wrench refers to the sixth letter of the Greek alphabet. The term hex head is sometimes used to refer to this type of drive, but this use is not consistent with its more conventional use referring to external wrenching hexagons. In the fastener industry, the terms socket head or hex socket head are generally used for the driven part of the driverdriven pair. A less common synonym is female hex. Triangle Head Screwdriver Canada' title='Triangle Head Screwdriver Canada' />FeatureseditSome features of hex keys are The tool is simple, small and light. The contact surfaces of the screw or bolt are protected from external damage. Images/57584125-bc12-4743-a952-9fdc1c5d92db/svn/bondhus-specialty-screwdrivers-10708-64_400_compressed.jpg' alt='Triangle Head Screwdriver Canada' title='Triangle Head Screwdriver Canada' />There are six contact surfaces between bolt and driver. The tool can be used with a headless screw. The screw can be inserted into its hole using the key. Torque is constrained by the length and thickness of the key. Very small bolt heads can be accommodated. The tool can be manufactured very cheaply, so one is often included with products requiring end user assembly. Either end of the tool can be used to take advantage of reach or torque. The tool is L shaped and was initially designed to be used with both sides. The tool can be reconditioned using an electric grinder by removing the worn out part, and then it works like new. The hexagon is typically a smaller diameter than would be used with an external cap, and is more likely to round off its contact surfaces. It is much more difficult to turn a damaged rounded or otherwise internal fastener than an external one. HistoryeditExtant records suggest without offering exhaustive documentation that the idea of a hex socket screw drive was probably conceived as early as the 1. Rybczynski 2. 00. US,1 which are confirmed to include internal wrenching square and triangle types that is, square and triangular sockets U. S. Patent 1. 61,3. P. L. Robertson, of Milton, Ontario, Canada, first commercialised the square socket in 1. In 1. 90. 91. 91. William G. Allen patented a method of cold forming screw heads around a hexagonal die U. S. Patent 9. 60,2. Published advertisements for the Allen safety set screw by the Allen Manufacturing Company of Hartford, Connecticut, exist from 1. Although it is unlikely that Allen was the first person to think of a hex socket drive, his patent for a manufacturing method and his realized product appear to be the first. In his autobiography, the founder of the Standard Pressed Steel Company SPS now SPS Technologies, Inc., Howard T. Hallowell Sr, presents a version of events3 in which SPS developed a hex socket drive in house, independently of Allen, circa 1. From this came the Unbrako line of products. This account from Hallowell does not mention the Allen patent of 1. Allen safety set screw product line. Hallowell does describe, however, the same inspiration also mentioned in connection with Allen for a wave of adoption of the hex socket head, beginning with set screws and followed by cap screws. This was an industrial safety campaign, part of the larger Progressive Movement, to get headless set screws onto the pulleys and shafts of the line shafting that was ubiquitous in factories of the day. The headless set screws would be less likely to catch the clothing of workers and pull them into injurious contact with the running shaft. SPS at the time was a prominent maker of shaft hangers and collars, the latter of which were set in place with set screws. In pursuit of headless set screws with a better drive than a straight slot, Hallowell said, SPS had sourced set screws of square socket drive from Britain, but they were very expensive. This was only 2 years after Robertsons Canadian patent. This cost problem drove SPS to purchase its first screw machine and make its screws in house, which soon led to SPSs foray into fastener sales for which it later became well known within the metalworking industries. Hallowell said that for a while we experimented with a screw containing a square hole like the British screw but soon found these would not be acceptable in this country the U. S. Then we decided to incorporate a hexagon socket into the screw. Hallowell does not elaborate on why SPS found that the square hole would not be acceptable in this country, but it seems likely that it would have to have involved licensing Robertsons patent, which would have defeated SPSs purpose of driving down its cost for internal wrenching screws and may have been unavailable at any price, as explained at List of screw drives Robertson. The story, if any, of whether SPSs methods required licensing of Allens 1. Hallowells memoir. The book does not mention which methodcold forming or linear broachingwas used by SPS in these earliest years. If the latter was used, then Allens patent would not have been relevant. Soon after SPS had begun producing the hex socket head set screw, Hallowell had the idea to make a hex socket head cap screw SHCS. Hallowell said, Up to this moment none of us had ever seen a socket head cap screw, and what I am about to relate concerns what I believe was the first socket head cap screw ever made in this country the U. S. 6 SPS gave their line of screws the Unbrako brand name, chosen for its echoing of the word unbreakable. Hallowell said that acceptance of the internal wrenching hexagon drive was slow at first painfully slow for SPSs sales, but that it eventually caught on quite strongly. This adoption occurred first in tool and die work and later in other manufacturing fields such as defense aircraft, tanks, submarines, civilian aircraft, automobiles, bicycles, furniture and others. Concerning the dissemination of the screws and wrenches, Hallowell said that the transition from a square head set screw Hallowell refers here to the then ubiquitous external wrenching square drive to a hexagon socket head hollow set screw, for which had to be developed special keys or wrenches for tightening or loosening the screw, was the cause of more profanity among the mechanics and machine manufacturers than any other single event that happened. I am sure that the old timers who read this book will remember this period vividly. Installation Of Visual Studio 2005 On Windows 7. These transitional growing pains echo those experienced many decades later with the adoption of the Torx drive.