1. All stainless steel needle has characteristics of strong corrosion resistance and heavy load resistance, which is most suitable for high speed, high precision and high operation and automatic production of point glue. 2. The needle is precision polished inside and outside, without burrs. The stainless steel needle has strong durability and is suitable for some special occasions.
| Specifications | 1/4 inch | 1/2 inch | 1 inch | Inner diameter（mm） | Outer diameter（mm） |
| 14G | 5214-0.25-M-B | 5214-M-B | 5214-1-M-B | 1.5 | 1.82 |
| 15G | 5215-0.25-M-B | 5215-M-B | 5215-1-M-B | 1.37 | 1.8 |
| 16G | 5216-0.25-M-B | 5216-M-B | 5216-1-M-B | 1.2 | 1.65 |
| 18G | 5218-0.25-M-B | 5218-M-B | 5218-1-M-B | 0.84 | 1.27 |
| 20G | 5220-0.25-M-B | 5220-M-B | 5220-1-M-B | 0.6 | 0.91 |
| 21G | 5221-0.25-M-B | 5221-M-B | 5221-1-M-B | 0.51 | 0.82 |
| 22G | 5222-0.25-M-B | 5222-M-B | 5222-1-M-B | 0.41 | 0.71 |
| 23G | 5223-0.25-M-B | 5223-M-B | 5223-1-M-B | 0.33 | 0.64 |
| 25G | 5225-0.25-M-B | 5225-M-B | 5225-1-M-B | 0.25 | 0.51 |
| 27G | 5227-0.25-M-B | 5227-M-B | 5227-1-M-B | 0.2 | 0.41 |
| 30G | 5230-0.25-M-B | 5230-M-B | 5230-1-M-B | 0.15 | 0.31 |
