E-Z Ancor Twist-N-Lock 75 lb. #8 x 1-1/4 Zinc-Plated Nylon Flat-Head Philips Drywall Anchors with Screws (4-Pack) can support medium loads up to 75 lbs. in 1/2 in. drywall. Use to install shelving, mirrors, pictures and other items in drywall. Install using a #8 x 1/4 in. screw (included) and a #2 Philips screwdriver (not included). No pre-drilling is necessary - screw directly into drywall. Audible click lets you know when the anchor is firmly set.