What does the phrase "or euer" mean in Middle English from the 1500s? The whole thing weighs approximately 50kg (110 pounds) so we can say that each screw holds approximately 10kg (22 pounds). I don't have a good answer for how far apart the anchors need to be, but if you can span anchors to 16" apart, you might as well just mount directly into the studs (assuming 16" OC). Maximum load installation hardware sold separately. When exploring the options for ceiling anchors, weight limits will guide your decision on the style and type of anchor you will need. It is great at holding things up, especially if you can hit a stud along the way. CDs and a stereo to play them weighs 22 lbs., and a TV uses up 44 lbs. An anchor provides extra support to hold weight in drywall. in brick and 572 lbs. per linear foot, assuming the spacing between supports measures 24 inches. They offer a holding strength of up to 40 lb. Provides adjustable height options for hanging shelving.