3" Self-Drilling Zinc Screw Continuous Insulation Fastener - 1000pcs/Box for Roofing, HVAC & Building Insulation Projects

Used for the mechanical attachment of Expanded & Extruded Polystyrene Insulation Board (EPS or XEPS) to steel studs 14 gauge to 20 gauge. Other uses include the attachment of Stucco Mesh, Expanded Wire Lath and Fiberglass Fabrics over rigid insulation boards. Length of Fastener does not take into consideration Sheathing Thickness. Add sheathing thickness to overall usable fastener length. Pre-assemble Anchor Plate with zinc coated screw fastener for Steel applications. Self Drilling with fine thread and coated.