... 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 ... thickness and tighten forming panel.forming tie system:D form tie,1/2" & 3/8" inner unit ... ,D cone,B cone,flat rib washer,u-clip. ... Fixing band; Flat washer; Screw jack; Hanger; Wire D cone