M4 x 12 mm Countersunk Head Screw Allen Key Bolt Socket Screw Black Steel 10.9
M4x12mm Countersunk (CSK) Head Allen Key Screw Socket Screw. Countersunk Angle(A) 90 Degree. Allen Key Size (S) 2.5 mm. Pitch(P) 0.7 mm. Socket Depth (SD) 1.5 mm. Head Thickness (T) 2.48 mm. Length(L) 12 mm.