The OMG SPGA238B-B seam plate is a barbed metal “stress plate” used in commercial roofing to fasten single-ply membranes and accessories. The barbs on the plate help grip membranes or insulation layers, resisting pull-through forces. It is constructed of Galvalume-coated or AZ-coated steel to enhance corrosion resistance while serving as a load-distributing plate for fasteners. Key Features Barbed profile for enhanced grip in membrane layers Steel body with corrosion-resistant coating Round...

The OMG SPGA2 is a 2-inch flat metal seam plate made from Galvalume® coated steel and designed for roofing membrane lap seam fastening. Its round design eliminates sharp corners that could damage membranes or insulation. It works with OMG’s standard, heavy duty, and CD-10 fasteners to help distribute load and maintain secure attachment of roofing membranes. Key Features 2-inch (50 mm) diameter flat stress/seam plate Constructed with Galvalume® coated steel for corrosion resistance Round design...