Elevator Expansion Bolt

elevator expansion bolt Expansion bolts are generally referred as the expansion of metal bolts, expansion bolts are used to promote the use of wedge gradient to produce friction grip wrapped force, to achieve a fixed effect. A bolt is a thread, a head with a taper. Outside the bread (some tin...

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elevator expansion bolt

Expansion bolts are generally referred as the expansion of metal bolts, expansion bolts are used to promote the use of wedge gradient to produce friction grip wrapped force, to achieve a fixed effect. A bolt is a thread, a head with a taper. Outside the bread (some tin pipe), iron cylinder (steel tube) has several half incision, put them together into the wall lay the hole, then the lock nut, the nut bolt pull, pull cylinder taper iron, iron cylinder is open up, so tightly fixed on the wall, generally used for protection bar, awning, air conditioning and other fastening in the cement, bricks and other materials. But it's not very reliable fixed, if there is a large shock load, may loose, therefore it is not recommended for installation of ceiling fan of elevators.

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