Cold heading Service

Square Nuts Manufacturer In China

Ningbo Teng Qi Fasteners Co., Ltd is a leading square nuts manufacturer in China. Square nuts, also known as square head nuts or four-sided nuts, are a type of nut with a square shape. They have four equal sides and are typically used in conjunction with square bolts or machine screws that have a square-shaped head. The square shape of the nut prevents it from rotating when tightened, making it useful in applications where a secure and stable connection is needed.

Square nuts are often used in woodworking and construction projects where traditional hex nuts might not provide the desired level of stability. They can be tightened using a wrench or pliers on two opposing sides.

Square nuts are available in various materials and sizes to suit different applications and requirements. They can be made from materials like steel, stainless steel, brass, or other alloys, depending on factors such as corrosion resistance and strength.

In addition to their functional purpose, square nuts are sometimes used in decorative applications, adding a unique visual element to projects that require exposed fasteners.

Specification of square nuts:

Specifications of square nuts can vary based on factors such as the size, material, thread pitch, and intended application. Here are some common specifications that are often provided for square nut:

Product NameSquare nuts
DiameterMetric: M5-M20
A2-70 A2-80 A4-70 A4-80
GradeSAE J995 GR.2/5/8
MaterialSteel/Stainless steel/Brass/Aluminum
Manufacturing Processwire drawing, cold heading/hot forging, thread rolling, heat treatment, surface treatment
Surface treatmentBlack Oxide Coating/Zinc Plating (Electroplating)/Hot-Dip Galvanizing/Mechanical Galvanizing/Dacromet Coating/Painting or Powder Coating
Application IndustryConstruction/Agricultural Machinery/Industrial Structures/Equipment and Machinery/Infrastructure/Mechanical and Engineering/Automotive and Transportation

When selecting square nuts, it’s important to consider these specifications to ensure that you choose the right nut for your intended application. The specifications will help you match the nut’s characteristics with the requirements of your project.

Manufacturing quality of square nuts:

In a world where connections matter, Ningbo Teng Qi Fasteners is more than just a fasteners supplier and manufacturer. We are architects of stability, builders of relationships, and champions of your success. From skyscrapers that reach for the sky to machines that power industries, our fasteners form the backbone of progress. When you choose Ningbo Teng Qi Fasteners, you choose unwavering quality, exceptional service, and a partner who understands that every bolt holds a piece of your vision.

Control MethodDetail
Material Inspection:Verify the material's composition, heat treatment, and quality upon receipt. Conduct metallurgical analysis to ensure the material properties meet the standards.
Process Control:Implement strict process control measures for heat treatment, machining, threading, and any other manufacturing steps. Maintain consistent process parameters to ensure uniform quality.
Inspection Points:Introduce inspection points at various stages of manufacturing to check for defects, dimensions, and quality. Inspect threading, dimensions, surface finish, and other critical parameters.
Sampling and Testing:Regularly sample products for testing, such as tensile testing, hardness testing, and metallurgical analysis, to ensure they meet the required specifications.
Thread Inspection:Thoroughly inspect threading using proper thread gauges to ensure accurate dimensions and fit with mating components.
Traceability:Implement a traceability system to track each fasteners journey from raw material to final product. This aids in accountability and recalls if necessary.