Search results
Results from the WOW.Com Content Network
Bitting is the depth of key cuts on a cylinder key for a pin tumbler lock, often expressed as a number. Bitting also refers to the combination of key cuts on a bit key for a warded lock or lever tumbler lock. The exact geometry of modern keys is usually described by a code system. [1]
Parallel keys are the most widely used. They have a square or rectangular cross-section. Square keys are used for smaller shafts and rectangular faced keys are used for shaft diameters over 6.5 in (170 mm) or when the wall thickness of the mating hub is an issue.
In cryptography, key size or key length refers to the number of bits in a key used by a cryptographic algorithm (such as a cipher).. Key length defines the upper-bound on an algorithm's security (i.e. a logarithmic measure of the fastest known attack against an algorithm), because the security of all algorithms can be violated by brute-force attacks.
There is also a special P keyway designed to accept any of the seven sectional keys and a special L key blank (35-101 L) designed to be accepted into all seven keyways. OEM L section blanks are made of stainless steel. [20] The older type, the common residential keyway, is known as 35-100C, which is a five-pin, C section.
Key relevance cannot be deduced from a key code, since the key code merely refers to a central authoritative source for designed shapes and sizes of keys. Typical modern keys require a key relevance of approximately 0.03 to 0.07 millimetres (0.0012 to 0.0028 in) (accuracy within 0.75% to 1.75%) in order to operate.
keyway position Pin configuration 2P 3P No minor keyway 20–25 VAC (violet) 30° / 1h Not standardized, reserved for special purposes 60° / 2h 20–25 & 40–50 VAC, 300 Hz (green) 90° / 3h 20–25 & 40–50 VAC, 400 Hz (green) 120° / 4h 20–25 & 40–50 VAC, 100–200 Hz (green) 150° / 5h Not used, blocked by major keyway 180° / 6h
A tubular lock and key. A tubular pin tumbler lock, also known as a circle pin tumbler lock, radial lock, or the trademark Ace lock popularized by manufacturer Chicago Lock Company since 1933, is a variety of pin tumbler lock in which a number of pins are arranged in a circular pattern, and the corresponding key is tubular or cylindrical in shape.
Part 5 (BS1192-5:1998) concerns Guide for structuring and exchange of CAD data. BS 1361 for cartridge fuses for a.c. circuits in domestic and similar premises; BS 1362 for cartridge fuses for BS 1363 power plugs; BS 1363 for mains power plugs and sockets; BS 1377 Methods of test for soils for civil engineering.