This item for the binding includes: 4× M6 × 14mm screws These screws are used to securely attach the bindings (Vario and Entity Ergo) to the Twin Tip. All boards require the 14mm screws – EXCEPT the Gonzales board, which requires 16mm screws. The ribbed design of the screws, together with the washers or Vario pads, ensures a firm attachment that will not loosen during riding.