Counter flange and anchor bolts kit for Piave System B Counter flange 250x250x3mm made of hot-dip galvanised steel 75μm UNI EN 1461 Anchor bolts kit (n°4 anchor bolts + n°8 nut + n°8 washers) M16x500mm made of hot-dip galvanised steel 75μm UNI EN 1461