Carbon Steel 4.8 8.8 10.9 12.9 M8 M12 Full Thread Metal Bolt Stud bolt Galvanized Blue DIN975
| Name | Metal Bolt |
| Standard | DIN, ASME, ANSI, ISO |
| Material | Steel |
| Place of Origin | China |
| Finish | Polish, Passivation, 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 |
Double - ended studs, often referred to as toothed bars, are indispensable in the world of fastening. Made from materials like carbon steel and aluminum, they come in different shapes and sizes to meet specific engineering needs. Carbon steel double - ended studs are available in lengths such as 1 meter, providing flexibility in various construction and manufacturing scenarios.
The threading on double - ended studs can be either full - thread or partial - thread. Full - thread studs offer continuous engagement along their length, ensuring maximum holding power. Partial - thread studs, on the other hand, are useful in applications where only a certain portion of the stud needs to be engaged.
Zinc plating, galvanizing, and black oxide coating are some of the surface treatment methods applied to double - ended studs. Zinc - plated white double - ended studs are popular for their clean appearance and good corrosion protection. Galvanized studs are well - suited for outdoor applications due to their superior resistance to rust. Aluminum double - ended studs, such as those made from 6061 and 7072 alloys, are lightweight yet strong, making them ideal for aerospace and automotive industries.
- Industrial Machinery Assembly: Used to connect heavy-duty components (e.g., gearboxes, engine blocks) in manufacturing equipment, ensuring stable load distribution during operation.
- Construction Engineering: Secures structural elements like steel beams, columns, and prefabricated panels in buildings, bridges, and infrastructure projects.
- Automotive & Aerospace: Joins critical parts (e.g., chassis frames, engine mounts, aircraft fuselage sections) where high strength and vibration resistance are required.
- Power Generation Equipment: Fixes turbine components, generator casings, and transmission systems in thermal, hydro, or wind power plants.
- Heavy-Duty Furniture & Fixtures: Assembles robust furniture (e.g., industrial workbenches, storage racks) and fixtures (e.g., machine tool bases) needing durable, long-term connections.
| Aluminum | Excellent thermal/electrical conductivity but naturally soft. May produce gelatinous buildup during processing. |
| Titanium | EDM machining recommended. Requires deionized water to control heat during processing. |
| Steel | Very strong metal. Wire cutting machines often preferred for complex features. Requires heat management. |
| Brass | High tensile strength, easy to machine but requires slow cutting speed due to softness. |
- Dual-threaded design: Enables simultaneous fastening at both ends, simplifying assembly/disassembly of connected parts (e.g., flanges, brackets).
- Medium carbon steel construction: Offers balanced strength (typically 4.8–12.9 grade) and toughness, suitable for moderate to high-load applications.
- Reusable & cost-effective: Can be removed and reinstalled multiple times without significant loss of performance, reducing long-term maintenance costs.
- Gasket-free compatibility: Directly interfaces with mating surfaces or nuts, eliminating the need for additional gaskets while maintaining sealing integrity.
- High-strength bolt compatibility: Works seamlessly with Class 8.8 and 10.9 high-strength bolts, enhancing overall joint reliability under dynamic or static loads.
- Durable wholeness: Manufactured with precision threading and surface treatments (e.g., zinc plating, black oxide) for corrosion resistance and extended service life.
A: We are factory and OEM are available.
A: Generally 7-10 days if in stock, or 15-20 days if not in stock (depending on quantity).
A: Yes, we offer free samples but customer pays freight cost.
A: 30% T/T in advance, balance before shipment or L/C.
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