塑料滾花頭螺釘 GB 840
Plastle dlamond knurl haed screws-type A
標(biāo)準(zhǔn)類型:GB/中國 標(biāo)準(zhǔn)號:GB/T 840-1988 規(guī)格:M4~M16

單位:毫米(mm)
塑料滾花頭螺釘 GB 840規(guī)格參數(shù)
| (mm) | P | dk | k |
| M4 | 0.7 | 12 | 5 |
| M5 | 0.8 | 16 | 6 |
| M6 | 1 | 20 | 6 |
| M8 | 1.25 | 25 | 8 |
| M10 | 1.5 | 28 | 8 |
| M12 | 1.75 | 32 | 10 |
| M16 | 2 | 40 | 12 |