TOGGLER TB - 3/8 to 1/2 (20 tCt.) Grips and locks on walls or ceilings 3/8-in to 1/2-in thick (e.g., residential drywall) for medium duty holding, but also works if you hit an unexpected solid, like a wood stud. Holds up to 143 Lbs. in 1/2-in drywall with #8 x 1-1/2-in Combo head screw included in the package. (Industry standards recommend 1/4 of this ultimate load per anchor. see our technical bulletin.) also works with any screw #6 through #14 with a minimum thread length of 1-1/4-in plus the thickness of the item to be anchored. Needs only a 5/16-in drill bit and a screwdriver or screw gun. Great for hanging window treatments (drapes, curtains, blinds, etc.), towel bars, pictures and mirrors, shelving, bathroom accessories, kitchen accessories and more. Made in the USA.