25- Ancoraggi bulloni in calcestruzzo Hurricane filettatura 1/4-20 per bullone tapparella marciapiede
Machine Screw Anchors For Concrete. Using a ½" Combination Drill Bit, drill a hole deep enough to insert the 1/4-20 Machine Screw Anchor into the Concrete or Concrete Block. Blow-out any excess dust in the hole.