InnoviFast 2-1/4 in. HD Seam Plates (14-Barb) have 14 barb anchors, along with reinforcing ribs, for strong wind uplift performance when used for roof system attachment to steel and wood roof decks. Stamped from 22 ga. steel with Galvalume coating, InnoviFast 2-1/4 in. XHD Seam Plates (14-Barb) are intended for use with InnoviFast HD Fasteners, Purlin Fasteners, Concrete Drive Pins, and other approved IKO fastening products.