Concrete fastener

Details Concrete fastener Concrete fastener

F - Mech Eng,Light,Heat,Weapons

16

B

F16B 25/00 (2006.01) F16B 5/02 (2006.01)

Patent

CA 2088729

A fastener for securing fixtures to concrete or masonry. The fastener includes a dual-thread first stage for engaging a bore in the concrete and stabilizing and centering the fastener as it taps its way into the bore. A single-thread second stage has a pitch larger than the threads of the first stage for receiving particulate cut from the bore so that the particulate will not interfere with driving the fastener completely into the bore.

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