SIG SAUER Screw, Torx, 5-40 X 1/4l, 1810344-R

"SIG SAUER Screw, Torx, 5-40 X 1/4l, 1810344-R. Torx is a bit design meaning you use the same bit throughout the entire screw. Torx screws are also B.S.F. (British Standard Format) screws meaning they have a long form that is generally required for a fastening or loosening system.