| Our standard sizes are as following, | |||
| Size | Inner Diameter | Outer Diameter | Width |
| M1.6 | 1.7 | 4 | 0.3 |
| M2 | 2.2 | 5 | 0.3 |
| M2.5 | 2.7 | 6 | 0.5 |
| M3 | 3.2 | 7 | 0.5 |
| M3.5 | 3.7 | 8 | 0.5 |
| M4 | 4.3 | 9 | 0.8 |
| M5 | 5.3 | 10 | 1 |
| M6 | 6.4 | 12 | 1.6 |
| M7 | 7.4 | 14 | 1.6 |
| M8 | 8.4 | 16 | 1.6 |
| M10 | 10.5 | 20 | 2 |
| M12 | 13 | 24 | 2.5 |
| M14 | 15 | 28 | 2.5 |
| M16 | 17 | 30 | 3 |
| M18 | 19 | 34 | 3 |
| M20 | 21 | 37 | 3 |
| M22 | 23 | 39 | 3 |
| M24 | 25 | 44 | 4 |
| M27 | 28 | 50 | 4 |
| M30 | 31 | 56 | 4 |
| M33 | 34 | 60 | 5 |
| M36 | 37 | 66 | 5 |
| M39 | 40 | 72 | 6 |
| M42 | 43 | 78 | 7 |
| M48 | 50 | 92 | 8 |
| M52 | 54 | 98 | 8 |
备注︰ As an experienced manufacturer, we committed ourselves to making high quality parts and accessories for all kinds of R/C cars, trucks, helicopters and aircrafts. Our products include both original spare parts and after-market hop-up parts. Our aim is to develop the r/c products with lighter weights, better hardness and strength, higher performance, but more reasonable prices. We produce and stock some standard R/C parts and accessories, also make custom production according to customers’ drawing or samples.
