grade 8.8 to 12.9 screw and bolt, nut and bolt sizes, standard size bolt and nut Quality Choice

grade 8.8 to 12.9 screw and bolt, nut and bolt sizes, standard size bolt and nut

1. standard size bolt and nut, nut/bolt, bolt Information

Themechanical grade is 12.9, case hardening is HRC 38-42, Material is 40CR,and the surface is treated with bluing, screw thread has two type description, one is the metric system:M12-M24-6g, another is denominator system:1/2-1/4--2A.the specification of all price bolt and nut / hex bolt and nut can be customized 

2.Design / Structure / Details Pics

Bolt drawing:

Products show:

3.Advantages / Features of standard size bolt and nut, nut/bolt, bolt :

1). Materials:

Our company has  purchased steel from several large steel groups , such as Hangzhou Steel Mill, standard size bolt and nut ,price bolt and nut/bolt ,Shanghai Bashan Steel Mill, Beijing Shrugging Steel Mill whose steel have good mechanical properties and stability of chemical component. it keep the bolt to be of high strength

2). Manufacture Procession

First, we have our own High-precision Digital Machining center for mould making in special Mould Workshop, excellent mould make product beautiful appearance  and its size accurately.

The second, we adopt blasting procession, removing Oxidation surface , make the  surface to be bright and clean and uniform and beautiful.

The third, in heat treatment: We use the Controlled-atmosphere Automatic heat treatment Furnace, we also have four mesh belt convey furnaces, Can deal with the products in different sizes keeping the non-oxidation surface

3). The all process quality control:

  The quality control is strictly performed from buying raw materials in warehouse to different machining procession and to final packing. We have Magnetic Powder Detector, Material Testing Machine,  Metallographic Microscope, such testing instruments, guarantee product high quality and beautiful appearance.

4). Our production capacity

Single bolts, every month can produce 1.7 million bolts. Now we buy a Full Automatic Cool-forging Machine. this greatly enhances our production capacity with more quality and more beautiful appearance.

Standard size bolt and nut, nut/bolt, bolt Workshop Products

4.Factory View

5.Certificates

We have thousands different part number of standard size bolt and nut, nut/bolt, bolt ,such as :

6.FAQ

1. You are a trader or a manufacture?

    We are an industry and trade integration business, our factory located on Quanzhou Nanan Distric, and our sales department is in City centre of Xiamen. The distance is  80Kms, 1.5 hours.

2. How can I be sure the part will fit my excavator?

    Give us correct model number/machine serial number/ any numbers on the parts itself. Or measure the parts give us dimension or drawing.

3. How about the payment terms?

     We usually accept T/T or L/C. other terms also could be negotiated.

4. What is your minimum order?

     It depends on what you are buying. Normally, our minimum order is USD5000. one 20’ full container and LCL container (less than a container load) can be acceptable.

5. What is your delivery time?

     FOB Xiamen or any Chinese port : 35-45 days . If there are any parts in stock , our delivery time is only 7-10 days. 

6. What about Quality Control?

    We have a perfect QC system for the perfect products. A team who will detect the product quality and specification piece carefully, monitoring every production process until packing is complete, to ensure product safety into container.

Contact us.

Contact us if you would like any further details or information on any of High quality machinery spare parts , and we will be more than happy to answer any questions that you may have.