Heavy-Duty Blind Rivet with Countersunk Head
Heavy-duty blind rivets with countersunk head in St steel or aluminium-magnesium alloy. FLOK supplies them for sheet metal joints in machine building.
Heavy-duty blind rivets are designed for assembling strong permanent joints: they are used in the assembly of sheet metal products. The rivet body is installed into a pre-drilled hole, and the countersunk head is sunk into the material and does not protrude above the surface.
Fixation is provided by a metal pull stem — the mandrel. The rivets are installed with a special tool — a rivet gun — and can be set even with access from one side only.
Manufacturing features
Heavy-duty rivets are designed to secure materials subjected to increased shear and tensile loads; they withstand constant loading. Materials of manufacture:
- St steel — used for making the body and the mandrel.
- Aluminium-magnesium alloy — offers high strength and corrosion resistance.
The rivets are available in a wide range of sizes, suitable for securing materials of various thicknesses. When selecting, consider the body diameter, its length, and the stem length.
Application of the fasteners
Fasteners of this type are used in machinery manufacturing, instrument making, machine tool and special equipment production, and construction, thanks to their strength and corrosion resistance.
| Size | M | B | D₁ | T | Tensile strength kN | Shear strength kN |
|---|---|---|---|---|---|---|
| 4.8 | 20.0 | 8.3 | 2.2 | 10.5 | 2.1 | 2.8 |
| 26.3 | 13.5 | |||||
| 6.4 | 27.2 | 10.1 | 2.4 | 13.0 | 4.2 | 6.0 |
| Size | Thickness of materials being joined | Flange diameter | Hole diameter |
|---|---|---|---|
| 4.8×20.0 | 3.17 - 8.41 | 8.5 | 4.9 - 5.1 |
| 4.8×26.3 | 3.17 - 12.22 | ||
| 6.4×27.2 | 3.17 - 12.07 | 10.1 | 6.6 - 7.0 |
See also
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