1. Hex Head Bolts acc. DIN 933 / ISO 4017 Grade : W.1.4828 / AISI 309 M 10 x 50 420 pcs. with Certificate : 3.1 acc. EN 10204 2. Hex Hea Nuts acc. DIN 934 / ISO 4032 Grade : W.1.4828 /AISI 309 M 10 840 pcs. with Certificate : 2,2 acc. EN 10204 Country of origin - please specify Delivery date : a.s.a.p. after P.O. receiving