... forming tie system 1.length:35mm-40mm 2.200 pcs/box 3.accessory:d 12 inner unit,d form tie D-CONE B- ... CONE B-FORM D cone nut Be used ... in concrete construction. D cone for ... tighten forming panel. forming tie system:D form tie,1/2" & 3/8" inner unit,D cone,B cone,flat rib washer, ...