Anchors are available from Grainger to fasten material for a secure hold. An anchor screw is held with grooves and slotting to grip and hold back the weight of the anchor base. Drywall anchors use the spiral or hook method at the end of the anchor to prevent it from coming out of the wall as a winch anchor. Shop at Grainger to find toggle bolts for concrete and cement in masonry applications. Anchors improve the hold threaded gsterners in drywall, plaster, wood paneling, hollow-core doors, and masorry. They expand behind the material or against the sides of the hole as the fasterner is driven. Primarily used for wall construction, fixture mounting and on machinery.