M3 M4 M5 Countersunk Socket Screws A2 Stainless Steel Allen Key Bolts Flat Head
M3 M4 M5 Countersunk Screws A2 Stainless Steel Allen Key Hexagon Socket Bolts. Pitch: 0.5mm（M3）/0.7mm（M4）/0.8mm（M5）. And provide good grip in different wood and man-made materials. Thread Length : 5mm-30mm (including the length of the head).