
Flush Head Studs
Studs that press in flush, M2 to M8, lengths 5 to 50 mm.

Studs for PCBs and soft materials, tin-plated phosphor bronze.
Broaching studs install into printed circuit boards and other non-ductile materials by broaching (cutting) their own seat. Tin-plated phosphor bronze gives good conductivity and solderability.
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-KFH |
|---|---|
| Electro-Tin Plated Phosphor Bronze | SG-KFH |
| Sizes | M2.5, M3, M4, M5 |
| Sheet hardness (SG-KFH) | HRB 55 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 | M2.5 | M3 | M4 | M5 |
|---|---|---|---|---|
| D ±0.25 | 4.10 | 4.58 | 5.74 | 6.6 |
| S max. | 2.30 | 2.3 | 2.3 | 2.3 |
| A max. | 1.65 | 1.65 | 1.65 | 1.65 |
| T ±0.13 | 0.51 | 0.51 | 0.51 | 0.51 |
| Min. sheet thickness | 1.53 | 1.53 | 1.53 | 1.53 |
| Recommended hole size +0.08 | 2.60 | 3.0 | 4.2 | 5.0 |
| Min. distance to edge of sheet | 3.30 | 3.8 | 5.1 | 5.3 |
| Length L | M2.5 | M3 | M4 | M5 |
|---|---|---|---|---|
| 6 | • | |||
| 8 | • | • | • | |
| 10 | • | • | • | |
| 12 | • | • | • | |
| 15 | • | • | • | • |
| 18 | • | • | • | |
| 25 | • |

Studs that press in flush, M2 to M8, lengths 5 to 50 mm.

Unthreaded locating pins with a flush head, 3 to 6 mm.

Hex-head clinch studs for high torque, M5 to M10.

High-strength studs designed for thin sheet metal.

Flush studs that disturb the sheet very little, close to edges.

Studs fitted into a blind hole so the reverse side stays untouched.