Drywall screws IntroductionThe drywall screw series is one of the most important categories in the entire fastener product series. Drywall screws are mainly used for the installation of various gypsum boards, lightweight partition walls and ceilings.The biggest feature of drywall screws in appearanc......

| Fine Thread Standrad | ||||
| No. | Diameter | Head Width | Thread diameter | Diameter |
| 6# | 3.5 | 7.9-8.10 | 3.40-3.60 | 13-19 |
| 7# | 3.9 | 7.9-8.10 | 3.70-3.90 | 25-30 |
| 8# | 4.2 | 7.9-8.10 | 4.0-4.30 | 25-30 |
| 10# | 4.8 | 8.5-9.0 | 4.70-4.90 | 55-90 |
| Coarse thread standard | ||||
| No. | Diameter | Head Width | Thread diameter | Diameter |
| 6# | 3.5 | 7.9-8.10 | 3.65-3.90 | 13-19 |
| 7# | 3.9 | 7.9-8.10 | 3.90-4.20 | 25-30 |
| 8# | 4.2 | 7.9-8.10 | 4.30-4.60 | 25-30 |
| 10# | 4.8 | 8.5-9.0 | 4.90-5.30 | 55-90 |










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