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  2. List of DIN standards - Wikipedia

    en.wikipedia.org/wiki/List_of_DIN_standards

    DIN 323-1: Preferred Numbers and Series of Preferred Numbers; Basic Values, Calculated Values, Rounded Values ... DIN 976-2: Metric interference-fit thread stud bolts ...

  3. Preferred metric sizes - Wikipedia

    en.wikipedia.org/wiki/Preferred_metric_sizes

    Preferred metric sizes are a set of international standards and de ... DIN standard M2.5 2.0 mm ... The number following the DN is a nominal value that is roughly the ...

  4. Metric prefix - Wikipedia

    en.wikipedia.org/wiki/Metric_prefix

    A metric prefix is a unit prefix that precedes a basic unit of measure to indicate a multiple or submultiple of the unit. All metric prefixes used today are decadic . Each prefix has a unique symbol that is prepended to any unit symbol.

  5. List of metric units - Wikipedia

    en.wikipedia.org/wiki/List_of_metric_units

    Metric units are units based on the metre, gram or second and decimal (power of ten) multiples or sub-multiples of these. According to Schadow and McDonald, [ 1 ] metric units, in general, are those units "defined 'in the spirit' of the metric system, that emerged in late 18th century France and was rapidly adopted by scientists and engineers.

  6. ISO metric screw thread - Wikipedia

    en.wikipedia.org/wiki/ISO_metric_screw_thread

    A metric ISO screw thread is designated by the letter M followed by the value of the nominal diameter D (the maximum thread diameter) and the pitch P, both expressed in millimetres and separated by a dash or sometimes the multiplication sign, × (e.g. M8-1.25 or M8×1.25). If the pitch is the normally used "coarse" pitch listed in ISO 261 or ...

  7. System of units of measurement - Wikipedia

    en.wikipedia.org/wiki/System_of_units_of_measurement

    Multiples and submultiples of metric units are related by powers of ten and their names are formed with prefixes. This relationship is compatible with the decimal system of numbers and it contributes greatly to the convenience of metric units. In the early metric system there were two base units, the metre for length and the gram for mass. The ...

  8. Want To Know How Fit You Really Are? Here’s The Stat ... - AOL

    www.aol.com/want-know-fit-really-stat-110000210.html

    The final number is recorded in mL/kg/min (milliliters of oxygen per kilogram of body weight per minute). If you’re serious about getting an exact measurement, check if any gyms or performance ...

  9. List of gear nomenclature - Wikipedia

    en.wikipedia.org/wiki/List_of_gear_nomenclature

    Module is the pitch circle diameter divided by the number of teeth. Module may also be applied to UK system gears, using inch units, but this usage is not in common use. Module is commonly expressed in units of millimeters (mm). MM = Metric Module PD = Pitch Circle Diameter in mm n = Number of Teeth MM = PD / n