中文版Screw--Screw precision size
| Metric system fine thread box thread | Metric system coarse thread box thread | |||||||
| Specification | Standard diameter | 6H precision | Specification | Standard diameter | 6H precision | |||
| Dmax | Dmin | Dmax | Dmin | |||||
| M2.5*0.35 | 2.15 | 2.184 | 2.121 | M1.4*0.3 | 1.10 | 1.16 | 1.075 | |
| M3.0*0.35 | 2.65 | 2.684 | 2.621 | M1.6*0.35 | 1.25 | 1.321 | 1.221 | |
| M3.5*0.35 | 3.15 | 3.221 | 3.121 | M1.8*0.35 | 1.45 | 1.521 | 1.421 | |
| M4.0*0.50 | 3.50 | 3.599 | 3.459 | M2.0*0.4 | 1.60 | 1.679 | 1.567 | |
| M4.5*0.50 | 4.00 | 4.099 | 3.959 | M2.2*0.45 | 1.75 | 1.838 | 1.713 | |
| M5.0*0.50 | 4.50 | 4.599 | 4.459 | M2.5*0.45 | 2.05 | 2.138 | 2.013 | |
| M5.5*0.50 | 5.00 | 5.099 | 4.959 | M3.0*0.5 | 2.50 | 2.599 | 2.459 | |
| M6.0*0.75 | 5.25 | 5.378 | 5.188 | M3.5*0.6 | 2.90 | 3.01 | 2.85 | |
| M7.0*0.75 | 6.25 | 6.378 | 6.188 | M4.0*0.7 | 3.30 | 3.422 | 3.242 | |
| M8*0.75 | 7.25 | 7.378 | 7.188 | M4.5*0.75 | 3.75 | 3.878 | 3.688 | |
| M8*1.00 | 7.00 | 7.153 | 6.917 | M5.0*0.8 | 4.20 | 4.334 | 4.134 | |
| M9*0.75 | 8.25 | 8.378 | 8.188 | M5.5*0.5 | 5.00 | 5.099 | 4.959 | |
| M9*1.00 | 8.00 | 8.153 | 7.917 | M6.0*1.00 | 5.00 | 5.153 | 4.917 | |
| M10*0.75 | 9.25 | 9.378 | 9.188 | M7.0*1.00 | 6.00 | 6.153 | 5.917 | |
| M10*1.00 | 9.11 | 9.153 | 8.917 | M8.0*1.25 | 6.75 | 6.912 | 6.647 | |
| M10*1.25 | 8.75 | 8.912 | 8.647 | M9.0*1.25 | 7.75 | 7.912 | 7.647 | |
| M11*0.75 | 10.25 | 10.378 | 10.188 | M10*1.50 | 8.50 | 8.676 | 8.376 | |
| M11*1.00 | 10.00 | 10.153 | 9.917 | M11*1.50 | 9.50 | 9.676 | 9.376 | |
| M12*1.00 | 10.75 | 10.912 | 10.647 | M12*1.75 | 10.25 | 10.44 | 10.106 | |
| M12*1.25 | 10.50 | 10.676 | 10.376 | M14*2.00 | 12.00 | 12.21 | 11.835 | |
| M12*1.50 | 11.00 | 11.153 | 10.917 | M15*1.50 | 13.50 | 13.676 | 13.375 | |
| M14*1.00 | 13.00 | 13.153 | 12.917 | M16*2.00 | 14.00 | 14.21 | 13.835 | |
| M14*1.25 | 12.75 | 12.912 | 12.647 | M17*1.50 | 15.50 | 15.676 | 15.376 | |
| M14*1.50 | 12.50 | 12.676 | 12.376 | M18*2.50 | 15.50 | 15.744 | 15.294 | |
| M15*1.0 | 14.00 | 14.153 | 13.917 | M20*2.50 | 17.50 | 17.744 | 17.294 | |
| M15*1.50 | 13.50 | 13.676 | 13.376 | M22*2.50 | 19.50 | 19.744 | 19.294 | |
| M16*1.0 | 15.00 | 15.153 | 14.917 | M24*3.00 | 21.00 | 21.252 | 20.752 | |
| M16*1.50 | 14.50 | 14.676 | 14.376 | M27*3.00 | 24.00 | 24.252 | 23.752 | |
| M17*1.0 | 16.00 | 16.153 | 15.917 | M30*3.50 | 26.50 | 26.771 | 26.211 | |
| M17*1.50 | 15.50 | 16.676 | 15.376 | |||||
| M18*1.0 | 17.00 | 17.153 | 16.917 | |||||
| M18*1.5 | 16.50 | 16.676 | 16.376 | |||||
| M18*2.0 | 16.00 | 16.21 | 15.835 | |||||
| M20*1.0 | 19.00 | 19.153 | 18.917 | |||||
| M20*1.50 | 18.50 | 18.676 | 18.376 | |||||
| M20*2.0 | 18.00 | 18.21 | 17.835 | |||||
| M22*1.0 | 21.00 | 21.153 | 20.917 | |||||
| M22*1.50 | 20.50 | 20.676 | 20.376 | |||||
| M22*2.0 | 20.00 | 20.21 | 19.835 | |||||
| M24*1.0 | 23.00 | 23.153 | 22.917 | |||||
| M24*1.50 | 22.50 | 22.676 | 22.376 | |||||
| M24*2.0 | 22.00 | 22.21 | 21.835 | |||||
| M25*1.0 | 24.00 | 24.153 | 23.917 | |||||
| M25*1.5 | 23.50 | 23.676 | 23.376 | |||||
| M25*2.0 | 23.00 | 23.21 | 22.835 | |||||
| M26*1.50 | 24.50 | 24.676 | 24.376 | |||||
| M27*1.0 | 26.00 | 26.153 | 25.917 | |||||
| M27*1.5 | 25.50 | 25.676 | 25.376 | |||||
| M28*1.0 | 27.00 | 27.153 | 26.917 | |||||
| M28*1.5 | 26.50 | 26.676 | 26.376 | |||||
| M28*2.0 | 26.00 | 26.21 | 25.835 | |||||
| M30*1.0 | 29.00 | 29.153 | 28.917 | |||||
| M30*1.50 | 28.50 | 28.676 | 28.376 | |||||
| M30*2.0 | 28.00 | 28.21 | 27.835 | |||||
| M30*3.0 | 27.00 | 27.252 | 26.752 | |||||
