M2 2.5 M3 M4 M5 M6 M8 M10 In All Lengths. Countersunk Socket Allen Bolt. Allen Key Size1.3mm 1.5mm 2mm 2.5mm 3mm 4mm 5mm 6mm. Thread Pitch0.4mm 0.45mm 0.5mm 0.7mm 0.8mm 1.0mm 1.25mm 1.50mm. A2/70 Stainless steel- DIN 7991.
eBay