Commonly used to keep storm window or screen inserts in place. Also used to keep doors and gates shut. Shown above in Zinc Plated steel (Top) and Galvanized Steel (Bottom). Dimensions: One Wing Plated: 1.257" Long x .734" Wide x .357" Projection. Two Wing Plated: 1.717" Long x .727" Wide x .378" Projection. One Wing Galvanized: 1.287" Long x .799" Wide x .369" Projection. Two Wing Galvanized: 1.731" Long x .743" Wide x .320" Projection. Includes 1" screw(s). Zinc Plated TurnbuttonRegular price: $0.41Sale price: $0.39, 100/$30.00 Type: One WingTwo Wing Galvanized Turnbutton 5287990 (4 Pack)Regular price: $4.79Sale price: $2.89, 10/$26.00 Style: One Wing Galvanized TurnButton 5287933 (4 Pack)Regular price: $4.99Sale price: $3.39, 10/$30.00 Style: Two Wing