How to quickly identify the elastic direction of the screw?! And recognize the size of the wrench.
Most of the bolts on the car are right handed, left, right, and tight. M5, M6, M8, M10, M12, and M14 are the most common.
General occasions (rotating outside) are right-handed thread, left loose, right tight; but in the rotating body with general left screw (opposite to the direction of the movement, that is, the more tight), then it is right, loose, left tight.M5, M6, M8, M10, M12 commonly used specifications; then the diameter is 5mm, 6mm, 8mm, 10mm, 12mm, so you have to be more sensitive to the size of it, not often take a ruler to Practice makes perfect. gestures!
Most of the bolts on the car are right handed, left, right, and tight. If you repair a car, bolts of M5, M6, M8, M10, M12 and M14 are the most common.
M8 is to use 14 wrenches, generally 13 of the wrench is not commonly used in metric bolt. For standard bolts. In the wrench, is the nominal diameter of bolt with its size in half, such as.20 M20 wrench choose 30 + 2 / 20 = 30, but this is not absolute to M10 will use 17 instead of 15. Around in that range. As long as the metric to remember the opening size of the spanner, with bolt and nut type, it is easier to think of what the wrench.
