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U31-Plastic Wire Turn Button Clip (Black)
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Get quoteThe Long Metal Turn Button Clip Silver (SKU: U09) is XKY Framing’s most rigid backing fastener. Its tapered rectangular body is 21 mm long and manufactured from 0.9 mm cold-rolled steel β the thickest gauge in the entire clip range β delivering maximum rigidity for professional frame assembly.
Thicker steel means less flex during installation and greater resistance to backing-board movement over time. The U09 Long Metal Turn Button Clip Silver is the preferred choice for conservation framers, museums, and galleries where long-term structural integrity is essential.
Total length: 21 mm. Head width: 6 mm. Tail width: 4 mm. Hole diameter: 2.8 mm. Thickness: 0.9 mm. Shape: tapered rectangle.
Pre-drill a 2.8 mm pilot hole. Seat the backing board. Position the Long Metal Turn Button Clip Silver. Fasten with a fine M3 machine screw to specified torque. Rotate 90Β° to lock. The narrow 4 mm tail ensures precise grip on thin backing boards.
For black version see U10 Long Metal Turn Button Clip Black. For dotted long clips see U11 Long Dotted Metal Turn Button Clip Silver.
0.9 mm cold-rolled steel, brushed silver electrophoretic coating.
Q: Why is the hole 2.8 mm?
A: For tighter thread engagement with fine M3 screws, providing higher pull-out resistance.
Q: What is the tapered shape advantage?
A: The taper concentrates grip precisely on the backing board edge.
Q: Is U09 suitable for metal-framed prints?
A: Yes, the 0.9 mm gauge is ideal for aluminium section frames.
| SKU | U09 |
|---|---|
| Product Type | hardware |
| MOQ | 100 |
| Lead Time | 7-10days |
| Overview | <p>The U09 Long Metal Turn Button Clip Silver features a tapered rectangular body 21 mm long with the thickest gauge in the series at 0.9 mm. This makes it the most rigid clip available, ideal for professional-grade frame backing in demanding environments.</p> |
| Highlights | 0.9mm Pro-Grade |
| Custom Packaging | Yes |
| Material | Metal (Steel) |
| Color | Silver |
| Total Length | 21 mm |
| Width (Head) | 6 mm |
| Width (Tail) | 4 mm |
| Hole Diameter | 2.8 mm |
| Thickness | 0.9 mm |
| Arch Height | N/A |
| Size Grade | Long (???) |
| Shape | Tapered Rectangle |
| β | 11 |
|---|
Why is the U09 hole 2.8 mm instead of 3 mm?
The 2.8 mm hole is sized for fine M3 machine screws with a tighter thread engagement, providing higher pull-out resistance than the standard 3 mm clearance hole.
What is the tapered shape advantage?
The taper directs the turning force to the narrow tail end, concentrating grip precisely on the backing board edge for a more secure lock.
Is U09 suitable for metal-framed prints?
Yes. The 0.9 mm gauge and 2.8 mm hole make it ideal for aluminium section frames where rigid hardware is preferred.

Factory direct
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Factory direct
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Factory direct
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Available β request lead time
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Factory direct
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