M5 M6 M8 BUTTON HEAD ALLEN BOLTS HEX SOCKET SCREWS A2 STAINLESS STEEL - ISO 7380. M2 M2.5 M3 M4 M5 ALLEN KEY GRUB SCREWS CUP POINT SCREWS A2 STAINLESS DIN 916. 5mm HALF LOCK NUTS THIN HEXAGON HALF LOCK NUT A2 STAINLESS STEEL DIN 439.
eBay