Style | Heavy Hexagon Bolt |
Standard | ISO7411 |
Size | M12-M30 |
Class | 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 |
Coating | black, zinc, HDG, Heat treatment, plain, etc. |
Material | Carbon steel & Stainless Steel |
Packing | bulk/ boxes in cartons, bulk in poly bags/ buckets, etc. |
Pallet | solid wood pallet, plywood pallet, ton box/bag, etc. |
Shipment Port | Shanghai & Ningbo |

Screw Thread d | |
ds | max | min | s | Nominal Size | max | min | e | max | min | k | Nominal Size | max | min | b | Ref. | | 0.515 | 0.642 | 0.768 | 0.895 | 1.022 | 1.149 | 1.277 | 1.404 | 1.531 | 0.482 | 0.605 | 0.729 | 0.852 | 0.976 | 1.098 | 1.223 | 1.345 | 1.47 | 7/8 | 1-1/16 | 1-1/4 | 1-7/16 | 1-5/8 | 1-13/16 | 2 | 2-3/16 | 2-3/8 | 0.875 | 1.062 | 1.25 | 1.438 | 1.625 | 1.812 | 2 | 2.188 | 2.375 | 0.85 | 1.031 | 1.212 | 1.394 | 1.575 | 1.756 | 1.938 | 2.119 | 2.3 | 1.01 | 1.227 | 1.443 | 1.66 | 1.876 | 2.093 | 2.309 | 2.526 | 2.742 | 0.969 | 1.175 | 1.383 | 1.589 | 1.796 | 2.002 | 2.209 | 2.416 | 2.622 | 5/16 | 25/64 | 15/32 | 35/64 | 39/64 | 11/16 | 25/32 | 27/32 | 15/16 | 0.323 | 0.403 | 0.483 | 0.563 | 0.627 | 0.718 | 0.813 | 0.878 | 0.974 | 0.302 | 0.378 | 0.455 | 0.531 | 0.591 | 0.658 | 0.749 | 0.81 | 0.902 | 1 | 1.25 | 1.38 | 1.5 | 1.75 | 2 | 2 | 2.25 | 2.25 | |
1.Are you a factory or trading company?
We are factories, mainly producing fasteners, such as nuts, bolts, screws and rods, and meanwhile, we also manage other hardware products.
2.Where is your factory located? How can I visit there?
Our factory is located in Jiaxing City, Zhejiang Province with a good location and convenient transportation, which is next to Shanghai Port, Ningbo Port and Zhapu Port.
3. How do you let me trust you.
Jiaxing City Qunbang Hardware Co.,ltd hs its own right of import and export,QBH trademark in China,United States,European Union have been registered.At the same time,you can also check the registration information of our company in the China industry and Commerce system.
4. How about your price.
We will be based on different markets,for different quality and quantity,tailor-made prices for customers,in order to achieve win-win goal.
5. What is your packing.
Usually 25KG/carbon,36CTNS on the pallets,or 20-30kg/Bags,then on the pallet,QBH company personalized packagingis also available,like 10PCS/plastic bag or 10pcs/box,it can print some information