Calculate the exact weight of your flush-mount drilling fasteners instantly. Our Phillips Flat Head Self Drilling Screw Weight Calculator is designed specifically for countersunk screws featuring a built-in drill point (DIN 7504 O / ISO 15482 standards).
Whether for window framing, metal cabinetry, or sleek architectural panels, precision matters. These countersunk Tek screws drill, tap, and secure in a single operation, completely eliminating pilot holes while providing a perfectly flat, non-interfering surface. Get accurate weight data for your bulk orders in seconds.
Supported Size Range:
- ✔ Diameters: ST2.9, ST3.5, ST4.2, ST4.8, ST5.5, up to ST6.3.
- ✔ Lengths: Ranging from short 9.5mm screws to longer 120mm fasteners.
- ✔ Key Feature: Countersunk Drill Point (Simultaneously penetrates metal and sits perfectly flush with the mating material for a clean, snag-free finish).
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Phillips Flat Head Self Drilling Screw Weight Chart (Stainless Steel 304, g/pc)
| Spec \ Length(mm) | 6.5 | 9.5 | 13 | 16 | 19 | 25 | 32 | 38 | 50 |
|---|---|---|---|---|---|---|---|---|---|
| ST2.9 | — | 0.31 | 0.42 | 0.51 | 0.61 | 0.80 | 1.0 | 1.2 | — |
| ST3.5 | — | 0.52 | 0.69 | 0.83 | 0.97 | 1.3 | 1.6 | 1.9 | 2.5 |
| ST3.9 | — | 0.57 | 0.77 | 0.95 | 1.1 | 1.5 | 1.9 | 2.2 | 2.9 |
| ST4.2 | — | 0.67 | 0.91 | 1.1 | 1.3 | 1.7 | 2.2 | 2.6 | 3.4 |
| ST4.8 | — | — | 1.4 | 1.7 | 1.9 | 2.5 | 3.1 | 3.6 | 4.6 |
| ST5.5 | — | — | 1.5 | 1.8 | 2.2 | 2.9 | 3.7 | 4.4 | 5.8 |
| ST6.3 | — | — | — | 2.5 | 2.9 | 3.9 | 4.9 | 5.9 | 7.7 |
Note: Weights shown are for Stainless Steel 304. For other materials, multiply by the density ratio. "—" indicates length not available for this specification.
