Framer Supply's complete T-Screw locking picture hanging set includes everything you need to securely hang your art. Perfect for public spaces, hotels, museums, and anywhere you want to increase security. Specially designed T Screws can only be turned by the included hardened metal wrench, which prevents unauthorized removal. These security hangers are also ideal for attaching wall art and photos to walls in RV's, Motorhomes, and Boats as they securely hold your item in place even while on the go. Great for narrow halls where people may bump into your picture frames or in Earthquake Prone Locations, never have to straighten your pictures again! Each set comes in its own poly bag, ensuring you have everything you need on hand. 1 Set includes 1 Security T-Screw + Wall Anchor, 2 Slide in Mounting Brackets, 2 1” x #8 Phillips Pan Head Screws + Wall Anchors, 3 Security Slotted Brackets, 6 1/2” x #6 Phillips Pan Head Screws. We recommend using 2 T-Screws for Frames larger than 24” x 30”.