These excellent looking Allen-head screws will dress up any Ruger Mk I or Mk II pistol plus give positive wrench engagement to help prevent stripped-out grip screws. Same diameter head as the standard screw, fits flush on all factory and aftermarket grips. Mfg: Brownells SPECS: Steel, blue or Nickel plated. 6-40 tpi, .250" (6.3mm) diameter head, .325" (8.1mm) long. 3/32" Allen head.
