Temper Heavy-Duty Reusable economical anchor is adjustable to fit any angle and may be used on the ridge or flat decks. It's made of heavy-gauge plate steel and will give you many years of usage without bending or deforming from many installations. It is Usually only used on wood decks and secure to deck surface with fasteners provided. Fasteners must penetrate a roof truss. Includes: 12 #12 x 2" Fasteners and 16d galvanized nails. (bags at bottom of image)