Calculate the exact weight of your integrated sheet metal fasteners instantly. Our Hex Flange Self Tapping Screw Weight Calculator is designed specifically for six-sided drive screws featuring a built-in washer face (DIN 6928 / ISO 7053 standards).
Whether for automotive body panels, metal roofing, or thin sheet metal assemblies, precision matters. The built-in flange distributes clamping pressure to prevent crushing thin materials, while the hex drive delivers maximum torque. Eliminate pre-tapped holes and separate washers. Get accurate weight data in seconds.
Supported Size Range:
- ✔ Diameters: ST2.2, ST2.9, ST3.5, ST4.2, ST4.8, ST5.5, ST6.3, ST8, up to ST9.5.
- ✔ Lengths: Ranging from short 4.5mm screws to longer 150mm heavy-duty fasteners.
- ✔ Key Feature: Integrated Flange Base (Acts as a built-in washer to protect mating surfaces and cover oversized holes, drastically speeding up assembly).
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Hex Flange Self Tapping Screw Weight Chart (Stainless Steel 304, g/pc)
| Spec \ Length(mm) | 10 | 16 | 25 | 30 | 40 | 50 | 70 | 100 | 150 |
|---|---|---|---|---|---|---|---|---|---|
| ST2.2 | 0.33 | 0.44 | 0.60 | — | — | — | — | — | — |
| ST2.9 | 0.74 | 0.94 | 1.2 | 1.4 | — | — | — | — | — |
| ST3.5 | 1.2 | 1.5 | 1.9 | 2.1 | 2.6 | — | — | — | — |
| ST4.2 | 1.6 | 2.1 | 2.7 | 3.0 | 3.7 | 4.4 | — | — | — |
| ST4.8 | 2.6 | 3.2 | 4.0 | 4.5 | 5.4 | 6.3 | 8.1 | — | — |
| ST5.5 | — | 4.2 | 5.3 | 5.9 | 7.1 | 8.3 | 10.8 | 14.4 | — |
| ST6.3 | — | 5.9 | 7.4 | 8.3 | 9.9 | 11.6 | 14.9 | 19.9 | — |
| ST8 | — | 11.6 | 14.0 | 15.4 | 18.1 | 20.8 | 26.3 | 34.4 | 48.1 |
| ST9.5 | — | 20.9 | 24.7 | 26.8 | 30.9 | 35.1 | 43.5 | 56.0 | 76.8 |
Note: Weights shown are for Stainless Steel 304. For other materials, multiply by the density ratio. "—" indicates length not available for this specification.
