ANSI/ASME B18.2.2 Hex Nuts Supplier in China
Ningbo Teng Qi Fasteners Co., Ltd is a ANSI/ASME B 18.2.2 hex bolts supplier in China. The ANSI/ASME B18.2.2 standard specifies the dimensions and requirements for hex nuts. These nuts are designed to be used with externally threaded fasteners, such as bolts and screws, to create a secure and reliable fastening connection. The standard covers various types of hex nuts, including regular (finished), heavy, and machine screw nuts.
Specification of ANSI/ASME B18.2.2 Hex Nuts:
| Product name | ANSI/ASME B18.2.2 Hex Nuts |
|---|---|
| Diameter | 1/4"-4" |
| Thread | Imperial thread |
| Class | SAE J995 GR.2/5/8 |
| Manufacturing Process | wire drawing, cold heading/hot forging, thread rolling, heat treatment, surface treatment |
| Surface treatment | Black Oxide Coating/Zinc Plating (Electroplating)/Hot-Dip Galvanizing/Mechanical Galvanizing/Dacromet Coating/Painting or Powder Coating |
| Application Industry | Construction/Machinery/Automotive/Infrastructure/Electrical and Electronics/Furniture/Marine and Offshore |
Mechanical and properties:
| Grade | Nominal Size, inches | Proofload, UNC and UN 8 Threads, psi | Rockwell Hardness |
| 2 | 1/4 thru 1-1/2 | 90,000 | C32 Max |
| 5 | 1/4 thru 1 | 120,000 | C32 Max |
| Over 1 thru 1-1/2 | 105,000 | C32 Max | |
| 8 | 1/4 thru 5/8 | 150,000 | C24-C32 |
| Over 5/8 thru 1 | 150,000 | C26-C34 | |
| Over 1 thru 1-1/2 | 150,000 | C26-C36 |
Chemical Composition:
| Grade | Carbon, % | Phosphorus, % | Manganese, % | Sulfur, % |
| 2 | 0.47 max | 0.120 max | - | 0.15 max |
| 5 | 0.55 max | 0.050 max | 0.30 min | 0.15 max |
| 8 | 0.55 max | 0.040 max | 0.30 min | 0.05 max |
Click to check dimension information of ANSI/ASME B18.2.2 Hex Nuts:
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Quality control of ANSI/ASME B18.2.2 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 fastener holds a piece of your vision.
| Control Method | Detail |
|---|---|
| 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. |