Hexagonal Huasi Head Self Tapping Screws
Product standard
GB/T15856.5；DIN7504K；ISO15480
Product level
Stainless steel SST A2 A4; carbon steel STL
Surface treatment
Passivation, blackening, galvanized, dacromet plating
Product specifications
| Products Specification | ST2.9 | ST3.5 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | |
| p | 1.1 | 1.3 | 1.4 | 1.6 | 1.8 | 1.0 | |
| dc | max | 6.3 | 8.3 | 8.8 | 10.5 | 11 | 13.5 |
| min | 5.8 | 7.6 | 8.1 | 9.8 | 10 | 12.2 | |
| c | min | 0.4 | 0.6 | 0.8 | 0.9 | 1 | 1 |
| s | Nominal=max | 4 | 5.5 | 7 | 8 | 8 | 10 |
| e | min | 4.28 | 5.96 | 7.59 | 8.71 | 8.71 | 10.95 |
| k | Nominal=max | 2.8 | 3.4 | 4.1 | 4.3 | 5.4 | 5.9 |
| l | 9.5mm~50mm | ||||||
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