
Concealed Head Standoffs
Threaded standoffs fitted into a blind hole, hidden from the front.

Standoffs that give a reliable earth path to the chassis.
Grounding standoffs make a dependable electrical connection between a PCB and the metal chassis, while also holding the board at a set height.
Full dimensions, preferred lengths and installation / push-out / torque-out performance data are in the tables below, taken from the self-clinching fasteners catalogue.
| Part numbers | SG-SOSG |
|---|---|
| Stainless Steel | SG-SOSG |
| Sizes | M3 |
| Sheet hardness (SG-SOSG) | HRB 70 or less |
All dimensions in mm unless stated. Values from the self-clinching fasteners catalogue. Install into sheet within the hardness limits shown in the specifications.
| Thread | M3 |
|---|---|
| C ±0.13 | 5.39 |
| D nom. | 6.4 |
| Min. sheet thickness | 1.0 |
| Knurling | 0.76 |
| Recommended hole size +0.08 | 5.4 |
| Min. distance to edge of sheet | 6.8 |
| Thread | Type | Length code L |
|---|---|---|
| M3 | SG-SOSG | 3, 4, 6, 8, 10, 12 |

Threaded standoffs fitted into a blind hole, hidden from the front.

Closed-end threaded spacers, sealed on one side.

Threaded spacers open at both ends.

Unthreaded spacers for a screw that passes right through.

Snap-top standoffs: push the board on, no screw needed.

Standoffs with a locking thread that resists screw loosening.