Suction Cups with Top Pilot Hole. 32mm x 2 sample pack
 Adams 32mm suction cups with a top pilot hole will attach an item with your own screw. See the technical drawing above.
Your screw has to have a sufficient course thread so that it cuts into the PVC neck around the hole. Make sure your screw does not pierce through the bottom of the cup.
Each Adams 32mm suction cup is rated to hold 1 pound (0.45kgs) in weight. The weight rating will change once a screw is fitted, as your fixed object will now rely on the screw fitting in the cup.
Fix these suction cups to a flat, clean, dry window, or slick/shiny non textured, non porous surface like mirrors, glossy plastic or glazed ceramic tiles etc.
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