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  2. List of thread standards - Wikipedia

    en.wikipedia.org/wiki/List_of_thread_standards

    Pipe Thread Form ASME B1.20.7-1991 (R2013) Hose Coupling Screw Threads - Inch: Pipe Thread Form ASME B1.21M-1997 (R2013) Metric Screw Threads - MJ Profile: V Thread Form BS 84: Tables of BS Whitworth, BS Fine and BS Pipe Threads: V Thread Form (55°) 14 ″-20 BSW ISO 68-1:1998: ISO general purpose screw threads—Basic profile—Part 1 ...

  3. Screwdriver - Wikipedia

    en.wikipedia.org/wiki/Screwdriver

    Screwdriver with rubber handle. The tool used to drive a slotted screw head is called a standard, common blade, flat-blade, slot-head, straight, flat, flat-tip, [6] or "flat-head" [7] screwdriver. This last usage can be confusing, because the term flat-head also describes a screw with a flat top, designed to install in a countersunk hole ...

  4. Nut driver - Wikipedia

    en.wikipedia.org/wiki/Nut_driver

    An Easco spinner handle with a detachable 14 in (6.35 mm) socket attached. A nutdriver or nut driver is a hand tool for tightening or loosening nuts and bolts . It essentially consists of a socket attached to a shaft and cylindrical handle and is similar in appearance and use to a screwdriver . [ 1 ]

  5. Yankee screwdriver - Wikipedia

    en.wikipedia.org/wiki/Yankee_screwdriver

    Stanley UK subsequently introduced Pozidriv screwdriver tips in various sizes (PZ#1 to PZ#3 in 5/16" and 9/32" shank models, PZ#1 and PZ#2 sizes only for the 7/32" shank models) slot screwdriver tips with the centring sleeve feature, and; extra-long screwdriver tips for special applications.

  6. Unified Thread Standard - Wikipedia

    en.wikipedia.org/wiki/Unified_Thread_Standard

    The standard designation for a UTS thread is a number indicating the nominal (major) diameter of the thread, followed by the pitch measured in threads per inch.For diameters smaller than ⁠ 1 / 4 ⁠ inch, the diameter is indicated by an integer number defined in the standard; for all other diameters, the inch figure is given.

  7. List of drill and tap sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_drill_and_tap_sizes

    In manufactured parts, holes with female screw threads ... Each standard size of female screw thread has one or several corresponding drill bit sizes ... 7 14-20 ...