High Quality Expansion Bolts for Hollow Structural Steel Sections with Galvanizing Plated
Expansion screws are generally referred to as metal expansion screws, and the fixing of expansion screws uses wedge-shaped inclination to promote expansion to generate friction gripping force, thus achieving the fixing effect. One end of the screw is threaded and the other end is tapered. There is an iron sheet (some steel pipes) on the outside, and half of the iron sheet cylinder (steel pipe) has several incisions, which are stuffed into the holes made on the wall together, and then the nuts are locked, the screws are pulled out by the nuts, and the taper is pulled into the iron sheet cylinder, so the iron sheet cylinder is expanded, so it is tightly fixed on the wall, which is generally used for fastening fences, awnings, air conditioners and other materials such as cement and bricks. However, its fixation is not very reliable. If the load vibrates greatly, it may come loose.
We are manufacturer of Machining Product, Screw Product, Turning Part. We are capability in manufacture no standard metal machining / turning product according to customer's drawing / samples and requirement. The material can be normal steel, Iron, SUS304, 301, 303, Brass, Copper, etc.
Welcome to send us your product drawings for quotation.
Small quantity order is acceptable.
We pay attention to your inquriy, and take quotation as our
important work.
Shanghai Bixuan Electrical Machinery Equipment Co., Ltd
Contact man: Austin.Wang
Audited Supplier 
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