Slotted round nuts DIN 546 Stainless steel A1 (or alternatively A2) M1.6 4.600 pcs. Slotted round nuts DIN 546 Stainless steel A4 M1.6 4.600 pcs. Slotted capstan screws DIN 404 Stainless steel A1 (or alternatively A2) M2,5X3 10.000 pcs.