MATERIAL 42CrMo4 Bolt M33x160 42CrMo4+QT ISO4014 (DIN931) 40 pcs. Nut M33 42CrMo4+QT ISO4032 (DIN934) 40 pcs. Bolt M24x100 42CrMo4+QT ISO4014 (DIN931) 48 pcs. Nut M24 42CrMo4+QT ISO4032 (DIN934) 48 pcs.