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As the bolt head is tightened, the cone is pulled up the bolt thread, causing the legs of the sleeve to expand until the cone locks the sleeve against the inner wall of the hollow section.available in two versions: the original 3-part design for general hollow section connections and the larger sized 5-part high clamping force (hcf) version, for higher strength structural connections.

A wide variety of flat washer making machine options are available to you, there are 36 suppliers who sells flat washer making machine on alibaba, mainly located in asia. the top countries of supplier is china, from which the percentage of flat washer making machine supply …

These screws are made from zinc-plated grade 5 steel that’s stronger than stainless steel and provides corrosion resistance in wet environments. when wired together, they resist vibration better than any other hex head screw.

These hose clamps are made of stainless steel and the surface is plated with zinc double wire designed screw clamps are very useful and provide great clamping force the smooth edges of the round wire are harmless to hands or hoses double steel wire are more stronger and can be used for long time fastening

Pan head screw company manufacturer with years's experience, from China.We mainly provide Pan head screw company with top quality and competitive value.we have an expert Pan head screw company solution designers.Our solution is by means of the national expert certification.


We are suppliers of all type of Pan head screw company moved in market place for wonderful sales, we've Pan head screw company type and specification's that will suit our customer's satisfaction. We have also attached Pan head screw company samples along with other of our desires with the above attached catalog sample.

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