SECRET SCREW

SECRET SCREWIf the head of the screw to give with the help of nalilsya the form shown in the figure, then any attacker will not be able to turn. On such hardware it is recommended to set sensible things sailing and motor boats, hook locks.

Recommend to read

  • TWO-TIER BREAD BOXTWO-TIER BREAD BOX
    Despite the ever-growing variety of breadboxes offered by industry, they still rarely meet the main requirement—keeping bread fresh: inside them it either goes stale quickly or gets moldy....
  • MICROSCOPE FROM A WEBCAMMICROSCOPE FROM A WEBCAM
    Talk about making microscope with computer connection with an increase in 300-500 times. This increase is enough for examining the cellular structure of plants, observing the behavior...