Available here are 2-Hole Security Screwdrivers. This drive system, sometimes known as Snake Eye® or Pig Nose is designed for low to medium torque applications. It has 2 holes drilled into the head which requires a unique 2-pin matching driver to install and remove it. We have a Full range of Self Tapping and Metric Machine Screws stocked in A2 Stainless Steel. This item is sold in singles. This is not a stock item therefore please allow 3-5 working days for dispatch. As this is not kept as a stock item, this is non-returnable.