Concrete form fasteners - GIF

Concrete form fasteners.

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Previously:

https://www.homemadetools.net/forum/...788#post213156
https://www.homemadetools.net/forum/...318#post211578
https://www.homemadetools.net/forum/...244#post199901
https://www.homemadetools.net/forum/...913#post164139
https://www.homemadetools.net/forum/...790#post194151

Interesting: The threads are left handed.
Carl.

Good catch on the threads, I was thinking they looked weird, but just thought it was the wide spacing between the threads.

Notice what appears to be a freshly pour floor is already filled with shrinkage cracks. Most likely caused by the excessive water so many people use in their concrete.