The Self-Drilling Screw features a razor-sharp head that effortlessly creates holes in thin metal or plastic plates. With its pointed design, there’s no need to waste time pre-drilling holes during installation. This not only saves you time but also makes the process more convenient and efficient.

Self-Drilling Screw
Sizes
Basic Information
| Model | SD-S4.2-19 | SD-S4.2-25 | SD-S4.2-32 | SD-S4.2-38 | SD-S4.2-50 |
| Size | 4.2*19mm(3/4″) | 4.2*25mm(1″) | 4.2*32mm(1 1/4″) | 4.2*38mm(1 1/2″) | 4.2*50mm(2″) |
| Case of boxes | 20 small boxes | 20 small boxes | 20 small boxes | 15 small boxes | 15 small boxes |
| Weight of a small box (±0.1) | 0.705kg | 0.88kg | 1.09kg | 1.26kg | 1.62kg |
| Quantity of small box | 500pcs/box | 500pcs/box | 500pcs/box | 500pcs/box | 500pcs/box |
| Materials | 1022A Carbon Steel | 1022A Carbon Steel | 1022A Carbon Steel | 1022A Carbon Steel | 1022A Carbon Steel |
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