Inviate la Vs. offerta per: Bolt: ASTM A 193 GR.B7 Nut: ASTM A 194 GR.2H All coated with PTFE over metallic substrate 1 - 1/8" x 160 mm stud bolts c/w two nuts 240 Set 1" x 140 mm stud botls c/w two nuts 40 Set 1" x 240 mm stud bolts c/w two nuts 24 Set We also need documents as follow when we order: + Certificate of Origin issue by Chamber of Commercial + Certificate of Quality issue by manufacturer. + Certificate of Conformity provided by the third party