Abstract: In a so-called strapless bin erected on a pallet, normally open self locking clips are compressed during bin erection by the on fork bin sides to lock and hold adjacent right angle bin sides in the erected disposition. The two off pallet bin sides have peripheral self locking corner irons, with two such self locking corner irons being placed on either vertical side of the off pallet side with vertical inset returns at their extremity. There inset returns key to corresponding routed grooves formed exteriorly at the side vertical edges of the adjoining on pallet bin sides. An internally mounted normally open side supporting clip is placed on the interior of the off pallet side at a sufficient interval to snugly capture the on pallet exteriorly grooved side into the self locking corner irons of the off pallet side. When the on pallet side seats at the routed grooves to the inset return of the off pallet side, the spring clip opens, snugly locking the two bin sides at right angles in an erected configuration.