Metric Nuts

We offer the highest quality fasteners.

A2/A4(A2-70/A4-70(80))

DIN/ISO/National Standard/ASTM

-Almost all sizes are in stock. Quick delivery and bulk shipments.

Custom fasteners can be produced overnight if required

- HIGH QUALITY MATERIALS: our products are made from high quality materials such as stainless steel, galvanised steel and carbon steel. This ensures superior strength and durability, allowing them to withstand high loads and harsh conditions.

- PRECISION MANUFACTURING: Each nut is precision engineered to meet exacting specifications, providing consistent quality and reliable performance. Our manufacturing process follows strict industry standards.

- Multiple Applications: Metric nuts provide a secure fastening solution in a variety of applications, making them ideal for a wide range of uses.

- Construction: In conjunction with bolts, steel beams and columns are firmly connected together so that the building structure can withstand a variety of external forces such as its own weight, wind loads, and seismic forces.

- Automotive: Metric nuts used to connect cylinder heads and cylinder blocks.

- Industrial machinery: metric nuts are used to fix various parts of machine tools, such as beds, tables, tool holders and so on.

Stainless steel metric nuts:

- Application: for firm fastening in automotive, construction and machinery.

- Installation: Insert bolts or other fasteners for fastening.

- Advantages: High strength and corrosion resistance to ensure stability and security.

Zinc plated metric nuts:

- Application: For outdoor applications and environments with high corrosion potential.

- Installation: Insertion of bolts or other fasteners for fastening.

- Advantages: Enhanced corrosion resistance for use in harsh conditions.

Carbon steel metric nuts:

- Application: For general construction and automotive applications.

- Installation: Insert bolts or other fasteners for fastening.

- Advantages: Cost-effective and strong support for a wide range of applications.

Custom metric nuts:

- Application: Designed for specialised applications requiring unique specifications.

- Installation: Custom installation to meet specific application requirements.

- Advantage: custom specifications to meet unique project requirements to ensure optimum performance.

Customisation options:

- Custom sizes: we offer standard and custom sizes of nuts to meet specific project requirements. Our advanced machining capabilities ensure a perfect fit for your application.

- Material selection: Depending on the application and environmental conditions, we offer metric nuts made from stainless steel, zinc-plated steel, carbon steel and other specialised materials.

- Finishes: For enhanced corrosion resistance and durability, we offer a variety of finishes, including zinc-plated, galvanised and custom coated.

The production process of metric nuts:

1. Material Selection: Select the suitable material according to the required strength and environmental conditions.

2. Cutting: Cut the material into the required shape and size.

3. Forging or Cold Heading: Rapidly upsetting and extruding the raw material into the basic shape of a metric nut by applying pressure to the raw material through a die in a cold heading machine.

4. Threading: Creation of precise threads to ensure firm tightness.

5. Heat Treatment: Increase the hardness of the nut and adjust the toughness of the nut.

6. Surface treatment: Apply anti-corrosion coating. 7 .

7. Quality Inspection: Ensure that each nut meets strict quality standards.

8. Packaging: Packaging the finished nuts for shipment.

The global standard for metric nuts:

Metric nuts are manufactured and used around the world, adhering to a variety of international standards to ensure compatibility and performance. Key standards include:

- ISO (International Organisation for Standardisation): ISO 898-1 provides guidance on dimensions, materials and mechanical properties to ensure global compatibility.

- DIN (German Standards Institute): DIN 787 outlines specifications for metric nuts used in Europe, focusing on dimensional and material requirements.

- ANSI (American National Standards Institute): ANSI/ASME B18.2.1 specifies the North American standard for metric nuts, detailing size and shape requirements.

- JIS (Japanese Industrial Standards): JIS B 1180 defines characteristics and test methods for Japanese metric nuts to ensure quality and performance.

Common pairs of metric nuts:

Metric nuts are usually paired with various fasteners to ensure a safe and reliable connection.

- Ordinary hexagonal nuts and hexagonal head bolts: widely used in the assembly of various mechanical equipment, steel structure connection and automobile manufacturing and other industries. Flange face nuts and hexagonal head bolts: commonly used in automobiles, railway vehicles, engineering machinery and other industries.

- Flange face nuts and hexagonal head bolts: commonly used in automobiles, railway vehicles, engineering machinery and other equipment that need to withstand greater vibration and shock connection.

- Slotted nuts and cotter pins combination with bolts: mainly used in occasions with high requirements for anti-loosening, such as mining machinery, heavy transport equipment, and some outdoor facilities that need to be kept tight for a long time.