Works in all types of materials: concrete, hollow or solid brick, masonry, tile over drywall, drywall, and more. Stronger than concrete screws in solid walls. Holds up to 675 lbs in concrete (3500 psi) with the #10 x 1-1/2-in screw included in the package. (Industry standards recommend 1/4 of this ultimate load per anchor. see our technical bulletin.) also works if you hit an unexpected cavity, as in hollow brick; no need to pull out the anchor and insert a different one. In walls of minimum thickness 3/8-in, the screw opens the anchor and locks in securely. In 1/2-in drywall each anchor holds up to 69 lbs with the screw included in the package. Also works with any screw #6 through #12 with minimum thread length of 1-1/4-in plus the thickness of the item to be anchored. Great for hanging electrical and lighting fixtures, bathroom accessories, grab bars, shelving and more. Made in the USA. Anchor extrudes up to twice its length and bonds the screw to solid surfaces for high strength Great for hanging shelving, hand rails, grab bars, door framing, hose reels and much more Holds up to 675 lbs in concrete (3500 psi) and up to 69 lbs in 1/2-in drywall (industry standards recommend 1/4 of this ultimate load per anchor) Requires a 1/4-in drill bit Package contains 6 anchors and 6 #10 x 1-1/2-in screws Color/Finish Family: Off-white Manufacturer Color/Finish: Off-white Type: Standard Diameter Measurement: 1/4-in Length Measurement: 1-1/4-in Maximum Weight Capacity (lbs.): 675 Application Strength: Heavy-duty For Use with Brick: Yes For Use with Concrete Block: Yes For Use with Drywall: Yes For Use with Plaster: Yes For Use with Solid Concrete: Yes For Use with Tile: Yes For Use with Wood: Yes Material: Plastic Package Quantity: 6 Screws Included: Yes Self-Drilling: No Use Location: Hollow and solid wall CA Residents: Prop 65 Warning(s): No UNSPSC: 30161500