Audited Supplier
| RWMA Group B | Proportion (%) | Rockwell hardness | Electrical conductivity % ACS | Ultimate tensile strength PSI | Breaking strength PSI | Density GMS/CC | Thermal expansion coefficientin /in cx10(6) at 20° | Thermal conductivityW/CM °C 20-400°C | Specific heat /kg °C at 20° | Electrical resistivity at 20° | |
| CW55 | --- | 45 Cu 55 W | 79B | 55 | 63000 | 110000 | 12.60 | 11.80 | 2.40 | 251 | 3.16 |
| CW68 | --- | 32Cu 68W | 88B | 52 | 75000 | 130000 | 13.93 | 10.90 | 2.10 | 219 | 3.33 |
| CW70 | class10 | 30Cu 70W | 90B | 50 | 85000 | 140000 | 14.18 | 10.77 | 2.01 | 214 | 3.41 |
| CW75 | class11 | 25Cu 75W | 94B | 48 | 90000 | 150000 | 14.70 | 10.22 | 1.89 | 201 | 3.51 |
| CW78 | class 11&12 | 22Cu 78W | 96B | 46 | 94000 | 160000 | 15.12 | 9.30 | 1.84 | 194 | 3.71 |
| CW80 | Class 12 | 20Cu 80W | 98B | 44 | 96000 | 170000 | 15.58 | 9.20 | 1.82 | 188 | 3.9 |
| CW85 | -- | 15Cu 85W | 102B | 36 | 75000 | 170000 | 16.19 | 7.97 | 1.75 | 175 | 4.71 |
| CW90 | -- | 10Cu 90W | 106B | 28 | 70000 | 150000 | 17.05 | 6.49 | 1.47 | 163 | 6.1 |
| CW75 | -- | 25Aldary 75W | 109B | 28 | 16000 | 200000 | 14.60 | -- | -- | -- | 6.1 |
FAQ:
1. Are you a factory or a trading company?
A: We are direct factory and our production line covers all standards and non stands/special screws as per your requirement.
2. Where is your factory ?
A: Our factory is in Taizhou,Jiangsu.
3. How long can I get some samples for checking and what about the price?
A: For samples we have in stock, we can send you some. If make new samples as per your specification, generally speaking, it takes around 5 working days.
The price of made to print samples will depends on the requirement of material, surface treatment, dimension, etc. Samples cost will be refunded when order quantity reaches to a certain amount.
4. How is the warranty of the products quality control?
A: We hold the tightend quality controlling from very begining to the end and aim at 100% error free.
5. How to get an accurate quotation?
A: If you already have a sample at hand, please send us the existing samples, and we will quote to you once we receive the samples.
If there is no sample, please send us the drawing /print of the fastener, we will check all the specification including the dimension, surface treatment, material,
and our mechanical engineer will evaluate if it will be applied to production.
