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

Unthreaded spacers for a screw that passes right through.
Clear hole standoffs have a plain bore instead of a thread. A screw passes through them to a nut or tapped part beyond, while the standoff sets the spacing.
Full dimensions, preferred lengths and installation / push-out / torque-out performance data are shown in the datasheet below, taken from the self-clinching fasteners catalogue.
| Part numbers | KB-SO |
|---|---|
| Zinc Plated Steel | KB-SO |
| Sheet hardness (KB-SO) | HRB 80 or less |
Dimensions, preferred lengths and performance data from the self-clinching fasteners catalogue.


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.

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

Standoffs with a locking thread that resists screw loosening.

Keyhole-mount standoffs that slide and lock a board in place.