Dumont Minute Man 66630

4mm x 5-1/8″ Overall Length, 0.1614″ Pilot Hole Diam, Square Broach 0.1575 to 0.158″ Tolerance, 0.2205 to 0.222″ Across Corners, 4.1mm Drill, 5/32″ Pitch, 1/4 to 1/2″ LOC, 480 Lbs. Pressure for Max LOC