NINGBO YONGBIAO FASTENER CO.,LTD
| Payment Terms | T/T |
| Supply Ability | 500tons/month |
| Delivery Time | 7-25days |
| Packaging Details | Carton Box/Pallet/Customized |
| Standard | DIN968 |
| Material | Carbon steel |
| Size | ST2.9-ST6.3 |
| Surface treatment | zinc plated |
| Grade | 8.8 |
| Sample | for free in stock,3-5 FREE samples but not included freight,ok |
| Application | electronics,furniture,thin sheet metal,Thermoplastic,Plastic |
| Thread type | self tapping screw,thread forming thread |
| Brand Name | YongBiao |
| Model Number | Self Tapping Screw |
| Certification | ISO9001/16949 |
| Place of Origin | ZheJiang China |
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Product Specification
| Payment Terms | T/T | Supply Ability | 500tons/month |
| Delivery Time | 7-25days | Packaging Details | Carton Box/Pallet/Customized |
| Standard | DIN968 | Material | Carbon steel |
| Size | ST2.9-ST6.3 | Surface treatment | zinc plated |
| Grade | 8.8 | Sample | for free in stock,3-5 FREE samples but not included freight,ok |
| Application | electronics,furniture,thin sheet metal,Thermoplastic,Plastic | Thread type | self tapping screw,thread forming thread |
| Brand Name | YongBiao | Model Number | Self Tapping Screw |
| Certification | ISO9001/16949 | Place of Origin | ZheJiang China |
1.Products Details:
PWA cross - recessed pan - head self - tapping screws with washer and teeth are a type of fastener. The "P" in PWA represents the pan - head, "W" represents the washer, and "A" indicates the self - tapping thread. These screws are usually made of carbon steel or stainless steel, and can have surface treatments such as nickel - plating or galvanization. They are designed to be directly screwed into materials like metal, wood, or plastic without pre - drilling holes, forming internal threads by self - tapping, and achieving a firm fixing effect.
2.Key Features:
- Easy to Install:
With a cross - recessed design on the head, they can be easily driven by a cross - head screwdriver or an electric screwdriver, featuring flexible angle adjustment and high installation efficiency.
- Washer Design:
The built - in washer increases the contact area with the fastened material, which can evenly distribute pressure, prevent the screw head from sinking into the material surface, and enhance the fixing stability.
- Self - Tapping Function:
The thread is sharp and has a self - tapping feature. It can penetrate the material and form threads by itself, simplifying the installation process and being suitable for various non - threaded hole materials.
- Tooth Design:
The teeth on the screw can enhance the gripping force, making the screw more firmly fixed in the material, reducing the possibility of loosening, and improving the mechanical connection strength.
- Good Versatility:
They can be used in a variety of scenarios, such as furniture manufacturing, construction, and electronic equipment assembly, and are suitable for fixing different materials.
- Corrosion Resistance:
When made of stainless steel or through surface treatments like nickel - plating and galvanization, they have good corrosion resistance, which can be used in different environmental conditions and has a long service life.
3.Technical Parameters
| d | ST2.9 | ST3.5 | ST4.2 | ST4.8 | (ST5.5) | ST6.3 | |||
| P | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | |||
| a | MAX | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 | ||
| dk | MAX | 7.5 | 9 | 10 | 11.5 | 13 | 14.5 | ||
| MIN | 6.92 | 8.42 | 9.42 | 10.8 | 12.3 | 13.8 | |||
| k | MAX | 2.35 | 2.6 | 3.05 | 3.55 | 3.8 | 4.55 | ||
| MIN | 2.1 | 2.35 | 2.75 | 3.25 | 3.5 | 4.25 | |||
| c | MAX | 0.8 | 0.9 | 1.1 | 1.35 | 1.6 | 1.8 | ||
| MIN | 0.6 | 0.7 | 0.9 | 1.05 | 1.2 | 1.4 | |||
| r | MIN | 0.1 | 0.1 | 0.2 | 0.2 | 0.25 | 0.25 | ||
| R | ≈ | 3.8 | 4.6 | 5.8 | 6.6 | 7.8 | 8.2 | ||
| Slot Number | 1 | 2 | 2 | 2 | 3 | 3 | |||
| M1 | Grade H | 3 | 4.2 | 4.6 | 5 | 6.5 | 7.1 | ||
| Depth | Grade H | MIN | 1.35 | 1.4 | 1.8 | 2.26 | 2.49 | 3 | |
| MAX | 1.8 | 2.03 | 2.46 | 2.87 | 3.15 | 3.66 | |||
| M2 | Grade Z | 2.9 | 3.9 | 4.3 | 4.7 | 6.2 | 6.7 | ||
| Depth | Grade Z | MIN | 1.58 | 1.47 | 1.88 | 2.28 | 2.51 | 3.02 | |
| MAX | 1.83 | 1.93 | 2.34 | 2.74 | 2.97 | 3.48 | |||
| y | reference value | C型 | 2.6 | 3.2 | 3.7 | 4.3 | 5 | 6 | |
| F型 | 2.1 | 2.5 | 2.8 | 3.2 | 3.6 | 3.6 | |||
| R型 | / | 2.7 | 3.2 | 3.6 | 4.3 | 5 | |||
4.Certificate Display
5.Production Process
6.Packaging and shipping Details
Company Details
Business Type:
Manufacturer,Exporter,Trading Company
Year Established:
2012
Total Annual:
5000000-6000000
Employee Number:
45~53
Ecer Certification：
Verified Supplier
Ningbo Yongbiao Fastener Manufacturing Co., Ltd. is located in Ningbo, the second largest port city in China. The factory is 50 kilometers away from Ningbo Port and can reach the sea freight warehouse in one hour, with very fast logistics. The company was founded in 2012 and after years of hard work... Ningbo Yongbiao Fastener Manufacturing Co., Ltd. is located in Ningbo, the second largest port city in China. The factory is 50 kilometers away from Ningbo Port and can reach the sea freight warehouse in one hour, with very fast logistics. The company was founded in 2012 and after years of hard work...
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