Concrete form fasteners - GIF

[Altair]

Concrete form fasteners.




Previously:

Tightening concrete pole mold bolts - GIF
Making pretensioned concrete piles - video
Vibrating precast concrete mold - GIF
Industrial concrete block production - GIF
Concrete vibrator - GIF

[carl blum]

Interesting: The threads are left handed.
Carl.

[hemmjo]

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.