| Material texture | SS304 stainless steel, copper |
| Standard | DIN, GB |
| Appearance | Natural color |
| Delivery time | 3-15 days |
| Sample | Free of charge |
| Acceptance completion | machining, planing, polishing, galvanizing, brown oxide, passivation, powder coating, etc |
| Grade | Tempered, Hardened, Spheroidized, |
| Packaging services | plastic bags cartons |
| we usually wrap fasteners to prevent them from colliding with each other during transportation and causing scratches, but also accept customization. | |





| specification | 2.5 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | |
| d | maximum | 2.34 | 2.83 | 3.78 | 4.75 | 5.71 | 7.64 | 9.59 | 11.53 |
| minimum | 2.2 | 2.69 | 3.6 | 4.45 | 5.41 | 7.28 | 9.23 | 11.1 | |
| h | Nominal | 0.6 | 0.8 | 1.1 | 1.3 | 1.6 | 2.0 | 2.5 | 3.0 |
| maximum | 0.68 | 0.9 | 1.2 | 1.4 | 1.7 | 2.1 | 2.65 | 3.15 | |
| minimum | 0.52 | 0.7 | 1 | 1.2 | 1.5 | 1.9 | 2.35 | 2.85 | |
| n | Nominal | 1.0 | 1.2 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 |
| maximum | 1.1 | 1.3 | 1.6 | 2.1 | 2.65 | 3.15 | 3.7 | 4.2 | |
| minimum | 0.9 | 1.1 | 1.4 | 1.9 | 2.35 | 2.85 | 3.3 | 3.8 | |
| H | Min = Nominal | 1.2 | 1.6 | 2.2 | 2.6 | 3.2 | 4 | 5 | 6 |
| dc | maximum | 1.5 | 2 | 2.75 | 3.25 | 4 | 5 | 6.25 | 7.5 |
| reference | 4.34 | 5.23 | 6.78 | 8.75 | 10.71 | 13.64 | 16.59 | 19.53 | |
| 1,000 pieces of weight (steel) = KG | 0.046 | 0.089 | 0.2 | 0.4 | 0.755 | 1.47 | 2.66 | 4.33 | |