I am trying to install a set of Hogue grips on my Mark III and discovered that the original screws may be a bit short. The grips are on but just by a thread. (No pun intended. ) From what I have gleaned from this forum the screws are 6x40 and 13/64 inch long. Should I order new grip screws that are longer? What, and whom, should I order them from? Any suggestions are welcome. Thank you in advance for your assistance. Have a great Thanksgiving all!