A stake pocket mounting bar for removably attaching a step to a truck bed or other generally horizontal surface, comprising: an anchor member defining at least one open slot for removably receiving a looped end of a strap; a leg member having first and second ends wherein the first end is attached to the anchor member and the second end defines a plurality of teeth. The anchor member may define two open slots. The leg member may define a bend, preferably about a 90° bend between its first and second ends so that when the leg member is inserted into a stake pocket of the truck bed, the teeth will be disposed generally horizontally such that they may engage the side of the truck bed. The anchor may be made of angle iron.