Toggle clamp, Ø 15 mm, with external thread and locking nut for slot 6

The RUWI toggle clamp (Ø 15 mm) with external thread and clamping nut is screwed securely into your component—whether it’s a stop, handle, plate, bracket, or other attachment—and secures it tool-free in slot 6 of aluminum profiles, slotted tables, and clamping plates. To do this, screw it into a matching threaded hole using its M15 × 1 external thread and lock it in place with the clamping nut so that it remains securely fastened to the component. It is installed from above at any point along the slot: lift the lever, press it into the slot against the spring force, rotate it 90 degrees, and flip the lever down—and the component is securely in place. To remove it, follow the steps in reverse order; the individual steps are shown in the instructions available under Downloads.

When the lever is flipped, an eccentric mechanism pulls the hammer nut upward against the undercut of the profile slot: There, it fits snugly and is additionally clamped in place by the clamping force. This allows you to apply a clamping force of approximately 1.5 kN with about 90 N of hand force, securely holding stops, holders, and lighter fixture parts in place. The clamping height can be adjusted by up to 7 mm using the knurled ring; with a 39 mm overall height, the clamp has a low profile. The base body is made of steel, the hammer nut is galvanised, and the eccentric lever is made of powder-coated cast aluminum, all manufactured in Germany.

Here's how to use it

• Permanently install components: You set up stops, plates, and brackets once using the clamp; it remains permanently in the component, so no loose parts are lost during relocation. The RUWI adapter plate is also designed according to this principle , featuring two toggle clamps.
• Handles and Lifting Aids: Attach handles equipped with clamps to the profile frame to carry, set up, or align it, and then remove them in a single step.
• Fixture and Equipment Construction: You can position, offset, and clamp fixture components onto the profile in seconds—both vertically and horizontally in side slots—because the lever replaces the setup tool.
• Mechanical Engineering and Prototyping: When configurations change frequently, the assembled components simply move along with them, so you don't have to reattach them every time.
• Exhibition Stand Construction: You can quickly assemble and disassemble the panels and attachments because the clamps are already permanently installed in them.

Does this fit your aluminum profile?

The clamp fits all aluminum profiles, slotted tables, and clamping plates with a slot width of 6 mm—whether they’re Item, Item-compatible, Bosch, or another profile system. The only factor that matters is the slot width, not the profile size or the manufacturer, so you don’t need to select a specific model when ordering.

If you want to clamp a component without a threaded hole, use the Ø 15 mm toggle clamp without an external thread, which clamps components up to 6 mm thick between the clamp and the profile. You can find larger sizes and other slot widths in the toggle clamp overview.

Downloads

• Instructions for Toggle Clamps with External Threads (PDF)
• Toggle Clamp Data Sheet (PDF)

All the details

Dimensions
Base body: Ø 15 mm (RUWI27500-1) or Ø 20 mm (RUWI27510-1, RUWI27510-3)
overall height: 39 mm (Ø 15 mm) or 50 mm (Ø 20 mm)
adjustment height: 7 mm (Ø 15 mm) or 9 mm (Ø 20 mm)

Thread
External thread: M15 × 1 (Ø 15 mm) or M20 × 1 (Ø 20 mm), with clamping nut

Compatibility
slot: 6 (Item, Bosch, and compatible profiles) for Ø 15 mm, slot 8 to 10 for Ø 20 mm (RUWI27510-1 compatible with Item profiles, RUWI27510-3 compatible with Bosch profiles)

clamping force
clamping force: approx. 2 kN (Ø 15 mm) or approx. 3 kN (Ø 20 mm)

Material
Main body: Steel
Eccentric lever: Cast aluminum, powder-coated