Ultimate tensile strength is 159 lb. WASHER HEAD METAL Selfdrill Plasterboard Fixing Heavy Drywall Anchors £40.25 - UK Heavy Duty Plasterboard Fixings Wall Plugs & Fixings - ALL TYPES - Screws Hollow Wall, Plasterboard Cavity, Stud | UK Hollow Wall Anchor Paulin Toggler Alligator AF5 5/16-inch All Purpose Concrete & Drywall Anchors-6pcs | The Home... Made in USA, and includes #8 x 1-3/4 screws TOGGLER - Home, Furniture & DIY:DIY Materials:Nails, Screws & Fasteners:Wall Plugs & Fixings - All Products - Toggler Alligator AF5 Concrete & Drywall Wall Plug Screws - Pack Of 6 Brand Toggler, 5 Pack, 5/8-3/4, TC Hollow Wall Anchors With Screws, Patented Mechanism Provides Secure Holding Power For Light & Medium Loads, Key Activated Locking Action Makes The Anchor A Rigid, Weight Distributing Truss In Hollow Walls, Providing Maximum Security In The Smallest Possible Hole, Can Be Used In Drywall Or Plaster Walls & In Hollow Doors Or Thin Panels, Accepts Any Type Wood, Sheet Metal, Or Stainless Steel & Size Of Screw From #6 Through #14., Commercial drywall anchor provides a firm hold from within 5/8- to 3/4-thick drywall