M3 M4 M5 M6 M8 M10 Button Head Screws Black High Tensile 10.9 Allen Socket Bolts
Specs (mm) M3 M4 M5 M6. Hex drive screws are fastened with the use of an Allen key of a screwdriver with hexagon drive bits. Socket Screws. Socket Button Screws Black High Tensile 10.9. Machine Screws.