Length (L, L1):- 32 mm Diameter 1:- 29,7 mm Diameter 2:- 26,3 mm Width Across Flat:- 22 mm Depth of Head (a1, t):- 14,5 mm Drive Connector Square (Female):- 3/8 inch Packing Unit:- 5 Piece Weight:- 0.087 kg Drive Connector Square (Female) Nominal Size:- 10 mm