A concealed drive, opened by the bit you own.
A screw drive has always been an open hole in the head. The F-Head™ is the first standard screw to hide its drive: a captive plunger fills the drive and sits level with the head until a standard 6-lobe bit presses it down.
The drive is still there. You just can't see it.
Concealing the drive changes what a screw can be: it can sit on the most visible surface of a product, in the wettest or most hygienic environment, and finish as a single, unbroken disc. Nothing about installing it changes.
Standard 6-lobe bit
No proprietary key to buy, lose or supply to your customers.
Full function
Installs and removes like any countersunk machine screw, with full torque through the drive.
Precision plunger
Less than 6 microns of clearance, so the seam nearly disappears.
The drive sits inside.
- 01 · Closed
The head is one continuous, level surface. No slot, no socket, nothing to see.
- 02 · Press
A standard 6-lobe bit pushes the captive plunger down and the drive appears.
- 03 · Drive
Install or remove it like any machine screw, with full torque.
- 04 · Release
Lift the bit and the plunger springs back. The surface closes behind it.
Every screw you know leaves a hole.
One head, every size.
- Head
- Countersunk, flush
- Drive
- Concealed 6-lobe under a captive plunger
- Material
- 316 stainless steel, brushed
- Clearance
- Less than 6 microns
- Metric
- M3, M4, M5, M6 and M8
- Imperial
- #6-32, #8-32, #10-24, #10-32, 1/4-20, 5/16-18 and 3/8-16
- CAD
- Drawing + STEP for every part on the Shop page
Asked plainly.
What is a concealed-drive screw?
A screw whose drive is hidden inside the head. On the F-Head™, a captive plunger fills the drive flush with the head and only moves when a bit is pressed in.
Do I need a special tool?
No. The F-Head™ opens with a standard 6-lobe bit.
Is it tamper-proof?
No. It is designed to be hidden, not locked: anyone with a standard 6-lobe bit can open it.
Can I get CAD?
Yes. Every part on the Shop page has its own drawing and STEP file.