Hardware Essentials 3/8 in. x 3-1/2 in. Hammock Hook in Lag Thread Style Lag Screw and Zinc-Plated (5-Pack) 322334.0 - The Home Depot
10 Pieces Stainless Steel Hammock Wall Hooks for Wall/Ceiling Mount - Vadania | Home Upgrader
Hillman Zinc Plated Hammock Hook- Plate Style in the Chain Accessories department at Lowes.com
Basic Hammock Wall Hook – Well Hung Hammocks
Pad Eye Plate Snap Hook Hanging Hardware Fitting Set Hammock Mount Sturdy Heavy Duty Metal Staple Hooks for Camping Outdoor Activities StyleE - Walmart.com