Sturdy anchor is easily installed and removed from trusses or sheathing, allowing repeated uses from job to job. Fits any roof peak up to 12/12 and can also be mounted perfectly flat. Made of rugged alloy steel with yellow chromate finish.Easily installed and removed from trusses or sheathing.Uses either 12 #14 x 3 1/2in. screws or 20 16d nails.Screw holes are countersunk so screws are flush with the anchor.Fits any roof peak up to 12/12.Can also be mounted flat.D-ring attachment.Rated at over 5000 lbs.Meets requirements of OSHA 1926 and ANSI Z359