$69.99 Crown Bolt #6-32 x 1-1/2 in. Zinc-Plated Hollow Wall Anchor with Truss-Head Combo Drive Screw (5 
How to Install Drywall Anchors to Hang Heavy Stuff on Your Walls
240 Pcs Heavy Duty #6 - 1-1/2 inch Hollow Wall Anchors for 1/2 Drywall Board 762931656335 | eBay
