Pentax K1000 / Spotmatic Counter Dial Retaining Screw Genuine Pentax part. This screw holds the film counter dial (the part with the numbers on it) onto your K1000 or Spotmatic camera. Commonly broken because it tightens counter-clockwise.
Pentax ME Super Shock Absorber Collar Genuine Pentax Shock Absorber Collar for ME and ME Super. Also called mirror bumper - commonly causes jammed mirror.