Drywall anchors + keyhole bracket : rDIY

Vertical mounting has obvious advantages, as you say Most plugs are designed to plug into a wall, not a ceiling The hard part is finding M8

keyhole slot ping beads , and a breast portion surrounding said fingers with plug for closing said bolt receiving opening in the supporting plate

keyhole slot dimensions Twin Slot Shelving · Storage · Tool Storage · Storage Bins · Garden Storage · Storage Wall Plugs · Image for Frame & Hammer Fixings category tile Frame

keyhole slot plug Or counterbore them and use wooden plugs After that the anchor is locked in place and you can back the screw out for your keyhole slot