China Self Tapping Screw Nail Fine/Coarse Thread Black Phosphate Bugle Head Drywall Screws, Find details about China Screw Nail, Nail from Self Tapping Screw Nail Fine/Coarse Thread Black Phosphate Bugle Head Drywall Screws
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 |