Basic Info Model NO: DIN931 Type: Hexagon Head Head Style: Hexagonal Material: Carbon Steel Standard: DIN931 Additional Info Trademark: MY Packing: 25kgs Per Box, 36 Boxes Per Pallet Origin: Ningbo China HS Code: 73181500 Export Markets : USA, Canada, Brazil, U. K., France, Germany, Spain, Italy, Switzerland, Dubai, Singapore, Malaysia, Japan, Korea. Etc. Product Description 1) Grade: DIN931 8.8/10.9/12.9, DIN933 8.8/10.9/12.9 2) Size: M6-M80 3) Material: Stainless steel 304 316 4) Surfaces: Color-Zinc Plated 5) Packaging: Carton Box, at the buyer requirement.