Expansion Screws

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Expansion screws in General is the metal expansion screw, expansion screw fixed is to use wedge-shaped inclination to promote expansion of friction bonding strength, the fixed effects. Screw is threaded, tapered. Outside package a Tin (plenty of pipe), Tin cylinder (pipe) half has several incision, put they with plug into wall Shang playing good of hole in, then lock nut, nut put screws to outside pulled, will cone degrees pulled into Tin cylinder, Tin cylinder was rose open, so tightly fixed in wall Shang, General for anti-guardrail, and rain canopy, and air conditioning, in cement, and brick, material Shang of tight solid. Fixed but it is not very reliable, if the load is large shock loosening may occur and is therefore not recommended for installing a ceiling fan.

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STE machinery equipment manufacturing Co.,Ltd

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7 YRS STE machinery equipment manufacturing Co.,Ltd
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