Width of Head (b2):- 34 mm Height of Head (a, a1, b, h, L2, t):- 62 mm Drive Connector Square (Male):- 1/2 inch Height of Head (a2):- 24,2 mm Drive Connector Rectangular:- 9 x 12 mm Angle:- 5 Degree Depth Gauge (C, L):- 17,5 mm Packing Unit:- 1 Piece Weight:- 0.15 kg Drive Connector Square (Male) Nominal Size:- 12,5 mm Continuous Load:- 1/2″ = 150 N·m