import bpy
op = bpy.context.active_operator

op.bf_Model_Type = 'bf_Model_Bolt'
op.bf_Head_Type = 'bf_Head_Hex'
op.bf_Bit_Type = 'bf_Bit_None'
op.bf_Nut_Type = 'bf_Nut_Hex'
op.bf_Shank_Length = 33.0
op.bf_Shank_Dia = 12.0
op.bf_Allen_Bit_Depth = 6.0
op.bf_Allen_Bit_Flat_Distance = 10.0
op.bf_Hex_Head_Height = 7.5
op.bf_Hex_Head_Flat_Distance = 19.0
op.bf_CounterSink_Head_Dia = 22.0
op.bf_Cap_Head_Height = 12.0
op.bf_Cap_Head_Dia = 18.5
op.bf_Dome_Head_Dia = 24.0
op.bf_Pan_Head_Dia = 24.0
op.bf_Thread_Length = 32.0
op.bf_Major_Dia = 12.0
op.bf_Pitch = 1.5
op.bf_Crest_Percent = 10
op.bf_Root_Percent = 10
op.bf_Hex_Nut_Height = 10.0
op.bf_Hex_Nut_Flat_Distance = 19.0
op.bf_presets = 'M12.py'
