Black S-Hook Turn Button Clip – U23 Complete Guide
The Black S-Hook Turn Button Clip (SKU: U23) is XKY Framing’s most innovative structural fastener. Its S-shaped cross-section creates two opposing retention lips that simultaneously secure a backing board and a dust cover (or second backing layer) with a single screw, halving the installation time for complex multi-layer frame assemblies.
Why Choose the Black S-Hook Turn Button Clip?
Conservation framers and professional finishers often need to secure both a primary backing board and a dust cover tape or secondary board. The U23 Black S-Hook Turn Button Clip eliminates the need for separate clips for each layer, reducing hardware count and creating a cleaner back-of-frame appearance.
Key Dimensions
Height: 17 mm. Top width: 7 mm. Base width: 14 mm. Slot width/depth: 3 mm × 3 mm × 2 faces. Thickness: 0.8 mm.
Installation
Seat primary backing board. Slide the lower S-hook lip under the backing edge. Position dust cover or secondary board. Fasten through 3 mm slot with M3 screw. The upper lip retains the secondary layer automatically.
Related Products
For disc clips see U22 Round Disc Metal Turn Button Clip Black. For plastic clips see U24 Small Plastic Melon-Seed Turn Button Clip Black.
Material & Finish
0.8 mm cold-rolled steel, matte black electrophoretic coating.
FAQ
Q: What is the S-hook’s unique advantage?
A: Two opposing hook lips retain backing board and dust cover simultaneously with one fastener.
Q: What is the slot width?
A: 3 mm wide × 3 mm deep on each face.
Q: Is U23 reusable?
A: Yes. 0.8 mm steel retains shape for hundreds of cycles.
