Self-locking hexagon thin nuts with non-metallic insert DIN 985 Stainless steel A4 M-22: 2.200 pcs. M-24: 10.400 pcs. M-27: 15.000 pcs. M-30: 2.000 pcs. M-33: 3.100 pcs. M-36: 3.300 pcs. Split lock washers DIN 127 Stainless steel A4 M-27: 15.000 pcs. M-30: 2.000 pcs. M-33: 3.000 pcs. M-36: 3.100 pcs.