A self-drilling screw is a type of fastener that combines the functions of drilling and fastening into a single step. Unlike traditional screws that require a pre-drilled hole before insertion, self-drilling screws have a built-in drill point that eliminates the need for pre-drilling. These screws are commonly used in metal-to-metal or metal-to-wood applications.
| Code | Size | Box (pcs) | Pack (pcs) |
| TDHW525 | #10 X 1″ | 500 | 10 |
| TDHW625 | #12 X 1″ | 350 | 10 |
| TDHW640 | #12 X 1 1/2″ | 300 | 10 |
| TDHW650 | #12 X 2″ | 250 | 10 |
| TDHW665 | #12 X 2 1/2″ | 200 | 10 |
| TDHW675 | #12 X 3″ | 150 | 5 |
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