50pcs White Plastic Invisible Hard Wall Mount Photo Picture Frame Nail Hook Hanger Hard Picture Frame Wall Hooks 34x19mm - Picture Hangers - AliExpress
Hillman 533718 Ook Nail-In Hardwall Hooks For Concrete And Brick 25 Pound Capacity 3 Pack: Picture Hangers 15 to 45 Pounds (049223500966-1)
Hard Wall Hooks, Various sizes (Framing Supplies)
Hardwall Plastic Hook - Large and Supports 39 Lbs - Picture Hang Solutions
30lbs Hardwall Hanger Wall Mount Non-mark Hook Picture Hangers, 30 Pcs - White - 50mm x 20mm,30 Pcs - Overstock - 35441100
Hillman Fasteners 121122 Hard Wall Hangers- Large - 3 Pack - Walmart.com