M4 x 8 Socket Countersink Black Pack of 20
M4 x 8mm socket countersunk screws in black high tensile steel, supplied in a pack of 20. These metric countersunk cap screws are driven with a 2.5mm hex allen key and sit flush when installed in a countersunk hole. The black oxide finish provides a distinctive appearance with moderate corrosion resistance. Suitable for machinery, automotive, electronics, and engineering applications where a flush, strong fixing is required. Ideal for workshops, trade professionals, and engineers requiring a compact black countersunk M4 fastener in a practical bulk pack for general assembly and maintenance tasks.