Carbon Steel Galvanized Grade 12.9 Internal Thread Round Parallel Dowel Pin DIN7979
Product Specifications
| Attribute | Value |
| Name | Hardware Pin |
| Standard | DIN, ASME, ANSI, ISO |
| Material | Steel, Stainless steel, Brass, Copper, Titanium Alloy, Plastic |
| Place of Origin | China |
| Finish | Polish, Passication, black, galvanization, Chromate, Dacromet |
| Certificate | ISO9001:2008, ROHS |
| Used | Building Industry Machinery |
| Thread Type | Coarse, Fine |
| Usage | Fastening |
| Function | Connection, Fastening and Decoration |
| Strength | High |
| Size | Various sizes available |
| Measurement System | INCH, metric system |
Product Description
The function of the dowel is to position and fasten the parts. It comes in two types: cylindrical and conical. The installation of the pin generally adopts the pressing method or the soft metal knocking in two methods. A small, usually conical, pointed, or peaked piece of wood or metal used to fasten or fasten (boards, tiles, soles, uppers, furniture molding, and components) or to mend holes.
In the sales of products, cylindrical pins, conical pins and cotter pins are the production of a wide range of commercial fasteners, but also irreplaceable fastener products. Pins play an important role in the connection of mechanical parts. According to the different shape and function, it can be divided into: cotter pin, conical pin, cylindrical pin, slot pin and so on.
Applications
| Automotive | In high-strength applications such as automotive engines, heavy-duty machinery, and bridge construction, they are preferred for their larger support area and better anti-loosening performance. |
| Mechanical | Mechanical, electronic, automotive, construction and other fields, used to connect various mechanical parts, circuit boards, engines, transmissions, building structures, etc. |
| Energy | For the energy industry, brackets and fixtures used to connect power generation equipment and transmission lines. |
| Architectural | In the field of construction engineering, shipbuilding, and petrochemical industry, it is used to connect building structures, improve the navigation safety and stability of ships, and ensure the safety and stability of petrochemical equipment. |
Material Specifications
| Aluminum | Aluminum has excellent thermal and electrical conductivity. However, aluminum is naturally soft and may produce gelatinous buildup after processing. If not properly operated, it is difficult to cut during processing. |
| Titanium | EDM machining is well suited for titanium because the process can withstand the viscosity of this alloy and break down lengthy chips. However, deionized water is needed as a medium to help control the heat generated during processing. |
| Steel | Steel is a very strong metal, and many manufacturers tend to use wire cutting machines instead of CNC machines for machining complex steel features. However, this material generates a lot of heat, so necessary precautions need to be taken. |
| Brass | Brass has a high tensile strength and is easy to cut by machine. But the cutting speed should be slow because it is a soft metal. |
Feature Advantages
- Appearance: Smooth surface, coated with anti-rust oil, smooth chamfer, no burrs. The surface shall not have black skin, cracks, folds, inclusions.
- Size: According to the drawing or sealed sample inspection.
- Surface roughness: Surface roughness is not more than 3.2.
- Hardness: According to the requirements of the drawing or sealed sample inspection.
- Thread: Screw with the nut into the shaft thread end should be moderate tightness.
- Rust test: With 10% salt water test does not rust. Hair width greater than 0.4mm according to crack treatment; Longitudinal hairlines permitted on the surface of the motor shaft; The magnetic trace display length of a single hair stripe is not more than 4mm; The number of hair lines allowed on the same section is not more than 5. Defects with magnetic marks showing a total length of less than 2mm are not counted.
Frequently Asked Questions
Q: Are you trading company or manufacturer?
A: We are factory and OEM are available.
Q: What is your terms of payment?
A: 30% T/T in advance, balance before shipment or L/C. If you have another question, please feel free to contact us.
Q: How long is your delivery time?
A: Generally it is 7-10 days if the goods are in stock. Or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? Is it free or extra?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.