M6 M8 M16 Stainless Steel Metal Bolt Square Neck T Type Bolt Customized SS316 SS304 SS316L

| Name | Metal Bolt |
| Standard | DIN, ASME, ANSI, ISO |
| Material | Stainless 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 |
When compared to other fastener types, square head bolts (square head screws) have distinct advantages. Unlike round - headed bolts, which may slip under torque, square head bolts’ flat surfaces provide a stable grip, enabling easier manual tightening and loosening. In contrast to countersunk head bolts, square head bolts are more visible and accessible, which simplifies inspection and maintenance. Material - wise, while some fasteners are limited to basic steel, square head bolts can be made from a wide range of metals, including high - strength carbon steel (grades 4.8, 6.8, 8.8, 10.9, 12.9) and various stainless steels (18 - 8 (A2), A4, SUS304, SUS316, SUS316L, A2 - 70, A2 - 80, A4 - 70, A4 - 80). This material diversity allows them to be used in both general industrial settings and harsh environments like marine or chemical plants. Size - wise, with options from M2 to M16 and beyond, they can meet different load - bearing requirements. In structural applications, such as building frameworks or heavy - machinery assembly, their secure fastening and durability make them a preferred choice over many other fastener types, ensuring the overall stability and safety of the structure.
- 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. |
- 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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