Hollow screw has a male end with metric pipe thread that is designed to be screwed into a machine or bulkhead. The other end has a hex head on it, so that a wrench can be used to screw the hollow screw into the internal thread in the equipment. There is a hole on the middle of the body of the hollow screw.These hollow screw bolts are essential for putting together moving parts like pulleys and gears.
Hollow screws including tight-spot hex head screws, vented hex head screws, and more.
For fastening where access is available from one side only. Suitable for hollow sections or steelwork.
Material:Stainless Steel,Alloy steel,Carbon Steel,Brass,Aluminum,Titaninum or as your requirements
Size:M2~M30 or custom Made
Finish:Plain, Zinc Plated(Clear/Blue/Yellow/Black), black oxide, H.D.G, DAC,GOEMET, as custom need
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