Amazon.com: ForgeFix Metal Cavity Anchors | M5 x 52mm | Zinc Plated | Bag 10 : Industrial & Scientific
MCA565 - Duratool - Cavity Anchor, M5, 55 mm Thread
10 Pieces Hollow Metal Cavity Fixing Hollow Door Anchor for 0-5mm Door Extra Short Hollow Wall Anchors Aluminium cladding Sheet Steel Pipe, Iron Sheet, Hollow Plastic Sheet (8 * 16MM): Amazon.com: Industrial