* Designed the steel self-drilling screw with the body made of Nylon,PE,etc.
* Used in concrete,brick,block,wall,etc.
* Special style,body colour and size is avariable as customers' needings.
Flat Head
| Item Code | Anchor Size (mm) | Screw Size |
| NHF530 | 5 x 30 | 3.5x35 |
| NHF540 | 5 x 40 | 3.5x45 |
| NHF550 | 5 x 50 | 3.5x55 |
| NHF635 | 6 x 35 | 4.0x40 |
| NHF640 | 6 x 40 | 4.0x45 |
| NHF650 | 6 x 50 | 4.0x55 |
| NHF660 | 6 x 60 | 4.0x65 |
| NHF670 | 6 x 70 | 4.0x75 |
| NHF680 | 6 x 80 | 4.0x85 |
| NHF860 | 8 x 60 | 5.0x65 |
| NHF880 | 8 x 80 | 5.0x85 |
| NHF8100 | 8 x 100 | 5.0x105 |
| NHF8120 | 8 x 120 | 5.0x125 |
| NHF8140 | 8 x 140 | 5.0x145 |
| NHF1080 | 10 x 80 | 7.0x85 |
| NHF10100 | 10 x 100 | 7.0x105 |
| NHF10120 | 10 x 120 | 7.0x125 |
| NHF10140 | 10 x 140 | 7.0x145 |
| NHF10160 | 10 x 160 | 7.0x165 |
Countersunk Head
| Item Code | Anchor Size (mm) | Screw Size |
| NHM640 | 6 x 40 | 4.0x45 |
| NHM650 | 6 x 50 | 4.0x55 |
| NHM660 | 6 x 60 | 4.0x65 |
| NHM670 | 6 x 70 | 4.0x75 |
| NHM680 | 6 x 80 | 4.0x85 |
Mushroom Head
| Item Code | Anchor Size (mm) | Screw Size |
| NHR540 | 5 x 40 | 3.5x45 |
| NHR635 | 6 x 35 | 4.0x40 |
| NHR640 | 6 x 40 | 4.0x45 |
| NHR650 | 6 x 50 | 4.0x55 |
| NHR660 | 6 x 60 | 4.0x65 |
| NHR670 | 6 x 70 | 4.0x75 |
| NHR680 | 6 x 80 | 4.0x85 |
| NHR860 | 8 x 60 | 5.0x65 |
| NHR880 | 8 x 80 | 5.0x85 |
| NHR8100 | 8 x 100 | 5.0x105 |
| NHR8120 | 8 x 120 | 5.0x125 |