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  2. List of screw drives - Wikipedia

    en.wikipedia.org/wiki/List_of_screw_drives

    Standard 12-point hex socket bits and wrenches fit these screws. The screw heads are typically flanged, and may fit into standard Allen hex socket cap screw counterbores molded or machined into parts to be fastened. Compared to Allen hex sockets, the advantages of these bolts include higher torque capability and the lack of a recess to trap water.

  3. AC power plugs and sockets: British and related types

    en.wikipedia.org/wiki/AC_power_plugs_and_sockets:...

    BS 546, Two-pole and earthing-pin plugs, socket-outlets and socket-outlet adaptors for AC (50–60 Hz) circuits up to 250 V is an older British Standard for three-pin AC power plugs and sockets. Originally published in April 1934, it was updated by a 1950 edition which is still current, [1] with eight amendments up to 1999. BS 546 is also the ...

  4. NEMA connector - Wikipedia

    en.wikipedia.org/wiki/NEMA_connector

    Single-phase 6-50 is commonly used on farms for silo unloaders, and is used with a 6-gauge flexible power cord up to 200 ft (61 m) long. The 6-50 receptacle charges electric vehicles at the same 32- or 40-ampere maximum from charging stations , on a short cord, as the more versatile 14-50 with its fourth prong neutral not used currently for any ...

  5. Schuko - Wikipedia

    en.wikipedia.org/wiki/Schuko

    Schuko sockets can accept two-pin unearthed Europlug (CEE 7/16) and CEE 7/17. Less safely, Schuko plugs can be inserted into many two-pin unearthed CEE 7/1 sockets and into some sockets with a different form of earth connection that will not mate with the earth contacts on the Schuko plug (e.g., some variants of the Danish socket).

  6. AC power plugs and sockets - Wikipedia

    en.wikipedia.org/wiki/AC_power_plugs_and_sockets

    Chinese dual sockets have both an unearthed socket complying with figure 5 of GB 1002-2008 (both flat pin and 4.8 mm round pin), and an earthed socket complying with figure 4 of GB 1002-2008. Both Thai and Chinese dual sockets also physically accept plugs normally fitted to 120 V appliances (e.g. 120 V rated NEMA 1-15 ungrounded plugs).

  7. Orders of magnitude (length) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(length)

    13 cm = 1.3 dm – body length of a Goliath birdeater; 15 cm = 1.5 dm – approximate size of largest beetle species; 19 cm = 1.9 dm – length of a banana; 26.3 cm = 2.6 dm – length of average male human foot; 29.98 cm = 2.998 dm – distance light in vacuum travels in one nanosecond; 30 cm = 3.0 dm – maximum leg length of a Goliath birdeater

  8. Foil (fencing) - Wikipedia

    en.wikipedia.org/wiki/Foil_(fencing)

    A foil is one of the three weapons used in the sport of fencing. It is a flexible sword of total length 110 cm (43 in) or under, rectangular in cross section, weighing under 500 g (18 oz), with a blunt tip. [1] As with the épée, points are only scored by making contact with the tip. The foil is the most commonly used weapon in fencing. [2]

  9. Socket wrench - Wikipedia

    en.wikipedia.org/wiki/Socket_wrench

    Socket set with ratchet (above), four hex sockets and a universal joint. A socket wrench (or socket spanner) is a type of spanner (or wrench [1] in North American English) that uses a closed socket format, rather than a typical open wrench/spanner to turn a fastener, typically in the form of a nut or bolt.