![]() ![]() This will not necessarily be the same as the actual plug diameter. the dimension obtained by adding the root depth of a key cut to the length of its corresponding bottom pin which establishes a perfect shear line. Cylinder MathĮffective Plug Diameter – Root Depth = Bottom Pin Length.Įffective plug diameter n. In fact, there is a formula for this process that you should commit to memory. ![]() 001″. These measurements can then be used to determine the key bitting specifications out right. The process to decode using a caliper is rather straight forward. a usually flat device with a cutaway portion indexed with a given set of depth or spacing specifications.Ĭalipers allow you to take actual measurements of the key, usually with accuracy of ±. You can also decode a key using a key gauge. The designation automatically indicates the exact function and keying level of each key and/or cylinder in the system, usually without further explanation. an industry standard and uniform method of designating all keys and/or cylinders in a master key system. The standard key coding system, SKCS, must be learned, understood, and practiced so that information stamped on the key isn’t confused with a blind code. These numbers cannot be confused with direct codes, however, because they will nearly always be less than the actual number of cuts found in the key. It’s also important to note that you should not confuse markings from a master key system with blind codes. Schlage master key pinning chart how to#You must either know that information, know how to derive it, or know where to find it to make use of a direct code.īlind codes are often alphanumeric although there are times where the blind codes can be numbers only. Schlage master key pinning chart code#A direct code will not clue you into the key bitting specifications, however. a designation, unrelated to the bitting, assigned to a particular key combination for future reference when additional keys or cylinders may be needed Direct CodesĪ direct code is essentially what you input into code cutting equipment to produce a key to manufacturer’s specifications. Direct codes correspond to bottom pin lengths belonging to the key bitting specification. The benefits of decoding a key using a direct code is that it is quick and straight forward. a designation assigned to a particular key which includes the actual combination of the keyīlind code n. a designation assigned to a particular key combination for reference when additional keys or cylinders may be needed.ĭirect code n. ![]() This code can be a direct code or a blind code.Ĭode n. The simplest method of decoding a key is when a code is stamped on the key bow. Methods of Decoding Keys Direct and Blind Codes With all this in mind, the goal of this article is to show you various methods of decoding a key and how to utilize the information gathered. Unless you regularly service Corbin Russwin’s various key bitting classes and depth systems, for example, they might cause great confusion without the ability to decode depths from a working key. There are times, however, where we must service keys and/or cylinders belonging to a key bitting specification that we are unfamiliar with. Schlage’s Classic key bitting specification, found commonly in commercial and residential settings, comes to mind. Wall Plates, Buttons, Enclosures, and AccessoriesĪn example of a key bitting specification, Schlage’s Classic.ĭecoding keys may seem straight forward to any of you that regularly interface with a specific manufacturer’s key bitting specification.Power Supplies, Extenders, and Transformers. ![]()
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