M3 - M20 Countersunk Socket Screws High Tensile 10.9 Zinc Plated Allen Key Bolts
Thread Dia : M3 M4 M5 M6 M8 M10 M12 M14 M16 M20. M20 Pitch：2.5mm. M3 Pitch：0.5mm. 【Material】:The bolts are made of stronger carbon steel material with a galvanised surface for strength, durability and reliability.