Dumont Minute Man 66636

12mm x 12″ Overall Length, 0.5039″ Pilot Hole Diam, Square Broach 0.4724 to 0.4732″ Tolerance, 0.662 to 0.664″ Across Corners, 12.8mm Drill, 5/16″ Pitch, 1/2 to 1-3/8″ LOC, 4,200 Lbs. Pressure for Max LOC