Abstract: Tie wire with a square cross section is provided which has a 30% increase in tensile strength and at least a 100% increase in surface contact with rebar which it is used to secure. The generally square configuration includes four convex portions at the corners, each pair of convex portions being interconnected by a concave portion. The concave portions may achieve an even larger increase in surface contact as they contact the surface of the rebar.

Abstract: A spacer/support having a body portion, a surface engaging portion and a securement to attach the body portion to a weldment plate in tilt-up construction is disclosed. In a first embodiment, the securement includes a plurality of fingers that can snap onto the head of a Nelson stud. A second embodiment is equipped with a flat head that can be secured to the weldment plate using an adhesive. The length of the spacer/support may be adjusted manually by cutting the body to length or by rotating one threaded member relative to a second to accommodate different thicknesses of walls. The spacer/support is preferably plastic but may be metal.