How to install and use metal expansion bolts

How to install the expansion screw during use? In fact, as long as you master the correct operation steps, the installation method of the expansion screw is very convenient and practical.

Baohe Expansion Bolt

The above kind of expansion bolt is the most used kind of expansion bolt. The first is to drill. Choose an alloy electric hammer drill with the same diameter as the expansion screw iron pipe, and install it on the electric drill to drill the place where it needs to be installed. , The depth of the hole is slightly equal to the length of the bolt. After drilling the hole, clean up the debris in the hole, and then insert the expansion screw into the hole. Note that one end of the nut is on the outside, and the other end is inserted into the hole. Tighten the nut. The tube will expand slowly, thus playing a fixed role. Usually the iron pipe of the expansion bolt in the picture above is 4mm thicker than the bolt, that is, m10 holes are drilled for m6 bolts, and m12 holes are drilled for m8 expansion bolts, in turn. (Guide: Some basic common sense that you have to read about fasteners)

When fixing the object, you need to insert the expansion bolt into the hole and tighten the nut first, so that the outer iron plate of the bolt is slightly hardened. When the expansion bolt is slightly fixed, unscrew the nut and flat washer, and then put the object to be fixed (usually required Fixed objects will be perforated) Align the bolts and install them, then screw the flat washer in order, and finally tighten and fix it with a nut.

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