Heavy Duty Metal Molly Bolts M4 x 39mm, Mechanical Expansion Cavity Wall Anchors for Plasterboard and Drywall, Pack of 10

Genuine mechanical-expansion fixing: a ribbed steel sleeve flares open behind the board as the central screw is tightened, spreading the load across a wide area instead of relying on friction alone like a plastic push-in wall plug. Fits hollow-backed boards: suited to plasterboard, drywall, particleboard, plywood and laminate panels; drill a 6.5mm (0.26in) hole for this M4 size and keep the drill square to the board face for a secure, even fit. Practical for everyday jobs: suited to wall-mounted radiators and towel rails, TV brackets, kitchen and bathroom cabinets, mirror cabinets, shelving, curtain poles and other metal brackets fixed to plasterboard or drywall. Each pack contains 10 metal cavity wall anchors complete with their own removable machine screws, so a fixture can be taken down and re-hung later without the anchor dropping into the wall cavity. Made from carbon steel with a white zinc-plated coating for everyday indoor corrosion resistance; a ring of small teeth under the flange grips the board face to stop the anchor spinning as the screw is driven in.