Dayton Superior A57 Sure Lock Strong Back
$4.64 / EACH
Dayton Superior's A57 Sure-Lock Strongback Clamp is manufactured from high strength steel. It is used with A55 Sure-Lock Ties and the A56 Sure-Lock Bracket as an economic single waler forming system of 2x4 lumber and 3/4" plywood. The A57 Sure-Lock Strongback Clamp attaches to the back of the A56 bracket and holds a 2 x 4 strongback firmly to the form.