DIYUK M4 x 47mm (4x24) Zinc-Plated Molly Bolt, Heavy-Duty Metal Cavity Wall Anchor for Plasterboard, Pack of 2

True mechanical-expansion fixing: unlike a simple push-in plastic wall plug that only grips the sides of the hole by friction, the ribbed steel sleeve flares open behind the board as the central screw is tightened, and small teeth under the flange bite into the front face to stop the anchor spinning while you drive the screw. Made for a 6.5mm drilled hole: this M4 x 47mm anchor suits plasterboard, drywall, particleboard, plywood and laminate panels, so you know the right hole size before you start drilling. Strong enough for real household fixing jobs: wall-mounted radiators and towel rails, TV brackets, kitchen and bathroom cabinets, mirror cabinets, shelving, grab rails, stair balustrade fittings and curtain poles fitted to plasterboard or drywall. Supplied as a pack of 2 anchors, each complete with its own removable machine screw, so a fixture can be taken down and re-hung later without the anchor dropping into the wall cavity. Carbon steel construction with a white zinc-plated coating for everyday indoor corrosion resistance, made to the supplier's own factory dimensional standard rather than a published DIN, EN or ISO fastener number.