The tail of the auger tail screw is in the shape of the auger tail or sharp tail. Without auxiliary processing, it can directly drill, tap and lock on the set materials and basic materials, greatly saving construction time.Compared with ordinary screws, they have high toughness and maintenance force, long time after combination and will not become loose. It is easy to complete the operation with safe drilling and tapping at one time.Mainly used in steel structure of the color steel tile fixed can also be used for simple construction of thin plate fixed.It cannot be used for metal-metal bonding.
| Name | Drill tail screw |
| Head Type | Hex head,Csk head, Pan head,Truss head,Wafer head…. |
| Thickness | #8(4.2mm),#10(4.8mm),#12(5.5mm),#14(6.3mm) |
| Lenght | 1/2-8”(13mm-200mm) |
| Standards | GB、DIN、ISO、ANSI/ASTM |
| Material | SWCH22A,C1022A |
| Usage | Mainly used in steel structure of the color steel tile fixed can also be used for simple construction of thin plate fixed.It cannot be used for metal-metal bonding |
| Samples | Samples are free. |
| Delivery time | 7-15 days |
| Thread specification | ST3.5 | ST3.9 | ST4.2 | ST4.8 | ST5.5 | ST6.3 | |
| P | pitch | 1.3 | 1.3 | 1.4 | 1.6 | 1.8 | 1.8 |
| H |
min
|
0.6 | 0.6 | 0.9 | 0.9 | 1 | 1 |
| dc | max | 8.3 | 8.3 | 8.8 | 10.5 | 11 | 13.2 |
| max | 7.6 | 7.6 | 8.2 | 9.8 | 10 | 12.2 | |
| k | max | 3.45 | 3.45 | 4.25 | 4.45 | 5.45 | 6.45 |
| min | 3.2 | 3.2 | 4 | 4.15 | 5.15 | 6.15 | |
| s | max≈nominal | 5.5 | 5.5 | 7 | 8 | 8 | 10 |
| min | 5.32 | 5.32 | 6.78 | 7.78 | 7.78 | 9.78 | |
| Dp | max | 2.8 | 3.1 | 3.6 | 4.1 | 4.8 | 5.8 |
| Drilling range (plate thickness) | 0.7~2.25 | 0.7~2.4 | 1.75~3 | 1.75~4.4 | 1.75~5.25 | 2~6 | |
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