IRWIN 1 2 in Woodboring Drill Bit Zinc Plated Bolts Stain Resistant Flooring Product Type 1002431790 Stain Resistant Flooring Product Type Gym Exercise Rubber Tile Indoor Outdoor Indoor Outdoor Installation Method Interlocking Installs Over Subfloor Any Location Gym Material Foam Package Quantity 4 Product Thickness Moderate (6mm 12mm) Product Thickness (mm) 12 mm Product Weight (lb 8 Features 3 Point Locking System No Hinge Location (Exterior View) Universal Reversible Blinds Between the Glass No Configuration Single door Material Wood core For Use with Mobile Homes Yes Pet Door Included Yes Glass Insulation Tempered Screen Type Self storing Glass Style Clear glass View Type High view Handing Universal reversible Weatherstripping Included Yes Handle(s) Included Yes 2 In 1 design drills both the through hole and countersink for hex bolt and washer installation Full screw point tip allow for easy through hole drilling up to 9 in deep 1 7 16 In counter bore to set washer