... 45#steel,40Cr 2.surface:zinc plated, painting 3.size:M8-M36 4.grade:8.8,10.9 ... u bolt with nuts, u bolt 10.9Certificate: ISO9001:2000High strength: Grade 10.9Material: 45# steel, 40CrFinish: zinc plated, ... ok)Size: M8-M36thread pitch: 1.5, 2.0, 3.0Supply ability: 500 tons per monthPacking: (1)inner packing ... bolts as per your samples or drawings.We can supply packings as per your design.Other sevices can ...