McNICHOLS® Perforated Metal, Slotted, Carbon Steel, Cold Rolled, Mill Finish, 16 Gauge (.0598" Thick), 1/8" x 1" Round-End Slot, Side Staggered, 1/8" Slot End Bar Width, 1/8" Slot Side Bar Width, 3.62 Holes Per Square Inch (HPSI), Minimum Solid Margins Both Sides of Sheet Parallel to Length of Sheet, Holes Sheared Through Both Ends of Sheet Parallel …