Gardner Bender  #MS-500J 1/2 in. Steel Staples for 14/2, 12/2 and 10/2 Romex and Non-Metallic Cable (500-Pack)
1/2" x 1 1/8" Metal Staples.  500 staples per jar.  Secures Romex® wire and other types of non-metallic (NM) Cable.  Use with 14/2, 12/2 and 10/2 Cable.  Recessed head drives faster and protects cable insulation.  Pointed legs drive in straight; will not split wood.  Preferred length.  Virtually "Oil-free" for cleaner handling.  Sharper tips for easy starting.