A4 Stainless Steel Stress Plate

Evolution Stress Plates are designed for use with Evolution Heavy Duty Screws,
Tek screws and Masonry anchors. Evolution Stress plates are used when fixing
insulation and single ply materials to help distribute load and prevent the material
being fastened from pulling over the head of the fastener. Insulation plates are
also used when mechanically attaching rigid form insulation to roof decks.
The design of the insulation plate allows it to flex during installation if a fastener
is overdriven preventing damage to the insulation board.
Oval stress plates; sometimes called lap plates, are used when mechanically
attaching single ply material in the area of the lap or seam