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  • 16 2015-10
    Do you know how to measure a nut?--XINXING Bolts
    Measuring Between the Flats 1.Lay the nut on a flat surface so that the hole lays flush. 2.Place the end of a measuring tape on one of the flat sides of the nut's outer perimeter. 3. Stretch the tape measure across the nut's diameter to the flat-side directly across from the one your pulling from. If the nut is metric, count the number of lines on the tape measure to find the measurement. If you count 9 lines, the size is a 9-mm (millimeter) nut. If the nut is US standard, count the smallest lines on the tape measure in sixteenths. Add the sixteenths together to find the size. If you count 11 lines, the size of the nut is 11/16. You can also measure from point-to-point to find the "Whitworth system" measurement. Instead of measuring from flat to flat, you measure from point-to-point on the hexagon. These two measurement methods help you know what size wrench or socket to use on a nut. Measuring for Diameter 1.Lay the nut down as you did in Section 1. Set the end of the tape measure at one side of the inner threads of the nut. 2. Stretch the tape measure to the other side of the inner threads of the nut. 3.Count the lines to find the diameter of the threaded hole. Measure across the widest opening the threads make. This measurement will help you match the thread diameter of the nut with the thread diameter of the bolt. Measuring for Thread Coarseness or Fineness 1.Count the number of threads along the inside thickness of the nut. Use a magnifying glass and a pin to keep track of the threads. 2.Write the total down on a piece of paper. 3.Figure the threads per inch of nut thickness. A nut with 16 threads per inch has coarse threads, while a nut with twenty threads per inch is fine thread. If the nut is 1/4-inch thick and that 1/4-inch has 4 threads,
  • 16 2015-10
    Hexagon Nuts & Bolts--XINXING Bolts
    Ancient Screws Hex-head nuts and bolts are part of a fastening system that uses screw threads. Screw threads date back to Assyrian King Sennacherib in the seventh century BCE. Sennacherib used screws as part of the pumps that fed the water systems for the Hanging Gardens of Babylon. The Greek mathematician, Archytas of Tarentum, described wooden screw threads in the third century BCE, and by the first century BCE wooden screws were widely used in oil and wind presses. These were usually attached to some sort of permanent handle as a turning device. Metal Screws Metal screws and bolts first appeared in Europe in the 1400s, but did not become a common fastener until the 18th century, when machine tools were developed that could manufacture them. Between 1770 and 1798, British instrument maker Jesse Ramsden, British engineer Henry Maudslay and U.S. inventor David Wilkins all patented screw-cutting lathes for making threaded rods. Early screws tended to be custom made with square bolt heads. Replacement bolts were all custom made and therefore not available in large enough quantities to become widely used. Standardization Square-head bolts were common in early applications because they were easier to make with the tools, metals and techniques of the time. Square heads require less accurate tolerances, so that a wrench that might not be the exact size of a bolt but be near enough to turn a hand-machined square bolt head. Square heads, however are large and require more room to turn. By 1841, British toolmaker Joseph Whitworth and his American counterpart, William Sellers of the Franklin Institute had proposed creating a system of standardized screw threads. Standardized bolts and nuts soon followed as toolmakers developed new techniques for making them in quantity. Bessemer Between 1856 and 1876, British Metallurgist Sir Henry Bessemer developed the Be
  • 16 2015-10
    Standard dimensions of hexagon nuts --XINXING Bolts
    Hex nuts and bolts join parts together and are mated in size (metric or standard), hole diameter and thread pitch as well as width and thickness. The hex nut corner angles prevent rounding off during the tightening process. Size Hex nut sizes available in most American hardware stores include standard sizes, ranging from 8 and 10 (less than 1/4 inch) to fractions of an inch (from 1/4 inch to 3 inches), indicating their thread hole diameters. Hex nut thread holes must match the hex bolt post diameter and thread pitch in order to tighten properly. Width Across Flats Hex nut measurements from one flat edge to the opposite flat edge range from an average 11/32 inch (size 8) to 4.5 inches (size 3), with slight variations depending on manufacturer, material (brass, steel) and oxidation-preventive coating. Width Across Corners Hex nuts range from a minimum 3/8 inch (size 8) to maximum 4.959 inch (size 3) when measured from one of the six corners to the opposite corner. Standard Hex Nut Thickness Standard hex nut thickness runs from a minimum 3/16 inch (size 8) to a maximum 2.654 inches (size 3). Hex Jam Nut Thickness Hex jam nuts, used to tighten against standard hex nuts and lock them in place, run from an average 5/32 inch (size 1/4) to an average 1 19/32 inch (size 3) in thickness.
  • 26 2014-06
    M-Tech Tokyo 2014
    Exhibition Zone: Tokyo Big Sight, Japan Booth Number: HALL east 6 .34-27 Date: 25-27 Jun 2014
  • 26 2014-06
  • 26 2014-06
    INDO FASTENER 2014
    INDO FASTENER 2014 Date: 15 - 17 May 201 Venue: Jakarta International Expo Kemayoran
  • 26 2014-06
    Fastener Fair Hannover 2014
    Fastener Fair Hannover 2014 XINXING FASTENERS
  • 26 2014-02
    Australia Exhibition
    The Exhibition in Australia National Manufacturing Week    7th-10th May.2013
  • 07 2013-11
    LAS VEGAS Exhibition
    NATIONAL INDUSTRIAL FASTENER & MILL SUPPLY EXPO/EAST OCT 23~25TH 2013  
  • 07 2013-11
    Shanghai Exhibition
    2013 Year Shanghai Fasteners Fair 2013 .6.20--22
  • 07 2013-11
    Japan Exhibition
    2013YEAR tokyo Fair 17th MECHANICAL COMPONENTA&MATERIALS TECHNOLOGY EXPO DATE:19--21 June 2013  
  • 07 2013-11
    Russia Exhibition
    2013YEAR Russia Fair DATE:08--10 October 2013       
  • 03 2013-12
    Germany Fair
     2013YEAR Stuttgart Germany Fair DATE:26-28 February 2013           
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