Length (L, L1):- 32 mm Diameter 1:- 30,0 mm Diameter 2:- 26,5 mm Depth of Head (a1, t):- 14,5 mm Width Across Flat:- 7/8 inch Drive Connector Square (Female):- 3/8 inch Packing Unit:- 1 Piece Weight:- 0.082 kg Drive Connector Square (Female) Nominal Size:- 10 mm