Self Tapping Screw, Drywall Screw, Self Drilling Screw, Chipboard Screw, If you need any product of screws, just let me know Furniture screw or Confirmat screw or Connecting screw1.Head type ... , chrome plated, Cr+3, hot dip galvanized, brass plated.Sizes: Hex socket: 1) Deep hole: 7 x 50 2) Shallow hole: 7 ... or Black Oxide availablePackingSmall box packing,Bulk,DIY packing ,Good quality packing