Box of 100 screws. Material: Steel Color / finish: Nickel-plated Temperature treatment: case-hardened Screw type: ungrooved Nominal length: 16 mm Overall length (incl. head): 15.5 mm Length of thread: 12.5 mm Thread shape: Wood screw thread, included angle 60 degrees Thread size: 3.5 mm Head shape: Counter sunk head Head diameter: 6.5 mm Head height: 3 mm Slot shape / tool support: Cross slot