Set screw

Original Williams flipper pawl setscrew.20-8942, or Bally M-1590

8-32 x 3/8" with point. 1/4" hex drive or slot screwdriver

For flipper pawl A-4962-x variations

Used in  small (metal) flipper B-6228, small plastic flipper B-6951 assy and large 3 inch flipper B-7060 assy up to around 1971 where it was replaced by the larger 2A-3952  1/4 x 3/8 inch set screw and the flipper pawls (A-4962-x) were simply drilled out for the larger set screw,