Clips to Attach A Sign to Chain Link Fence - Aluminum Bracket and Bolts By SmartSign DURABILITY. Rugged, rust-proof steel features a baked enamel finish for lasting support. INSTALLATION. This handy clip design is a simple tool to attach signs on a chain-link fence. Screw the bracket's bolts through your sign and fasten on the back side of the fence. COMPATIBILITY. Pair of clips fasten a 7x10 or 10x14 aluminum or plastic sign to a chain-link fence. Use with signs that have 3/16" od holes.