Half-threaded with 5-40 standard thread. Half-unthreaded. Allows you to control the length and position of the threads as well as the length of the pilot and tang.
Total length 80 mm (3.15"). 3 mm Diameter.
Long enough for Violin, Viola or Cello. Made of steel by Paulus in Germany.
Eyelets not included. Any of the 5-40 eyelets will work with these screws.