Combination of Hexagon screw head slip Cause Analysis

Some time ago to create the screws Zhujing wrote an article, the title of this article is - screw slippage analysis of the causes of the problem. Do Hexagon combination of screws for too long, often encounter a lot of customer response you within hexagonal combination of screws in the assembly process, the head of the screw is installed with an electric screwdriver to the above, the head of the screw will slip. Faced with this problem, create solid screw Zhujing analysis hexagon socket combination screw head slip reasons:Hex Nylon Insert Nut, Hex Slot Nut, Hex coupling Nut, Hex flange nut, Wheel Nut,  Hex collar nut    May be a metal screw wire that screws wire quality is not good, the more impurities hardness is not enough. In this regard for a good screw wire can also screw the hardening process. Make up to the hardness of the specified indicators. Screws and hard, in order to prevent hydrogen embrittlement. You can get hardened screws after electroplating factory, called electroplating factory in first help that screws in addition to hydrogen.
 
    2 is also possible that technical problems in the production process. Within the hexagonal hexagonal socket combination screws on the side of too large.
    The reason: poor quality punch, the face side of the size is not the same, hexagonal edge unclear, the taper too large, the upper limit of R angle, reducing the depth of the limited hoisting needle taper is wrong, and the taper length is small, big. Resulting in two red molding, hex the upper side. Lubricating oil is too thick, improper exhaust, the hexagon socket molding suffocation, hex side.

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