Metal Melon-Seed Arch Turn Button Clip Black – U19 Complete Guide
The Metal Melon-Seed Arch Turn Button Clip Black (SKU: U19) is XKY Framing’s most innovative design — a clip that merges the compact melon-seed profile with the spring-loading action of an arch clip. The result is a 16 mm fastener that locks automatically with spring tension in a frame rabbet too small for standard arch clips.
Why Choose the Metal Melon-Seed Arch Turn Button Clip Black?
Small and medium frames often have narrow rabbets that cannot accommodate the 24.8 mm arch clips (U12/U13). The U19 Metal Melon-Seed Arch Turn Button Clip Black fits into rabbets as narrow as 5 mm while still providing the spring-loaded locking advantage of an arch design.
Key Dimensions
Total length: 16 mm. Head width: 5.5 mm. Base width: 6.5 mm. Narrow neck: 2.5 mm. Hole diameter: 2.8 mm. Thickness: 0.5 mm. Arch height: 2 mm.
Installation
Seat backing board. Position U19 clip over rabbet. Fasten with 2.8 mm hole compatible screw. Rotate to lock — the 2 mm arch springs against the backing board automatically.
Related Products
For standard arch clips see U12 Large Silver Arch Turn Button Clip. For plain melon-seed see U01 Small Metal Turn Button Clip Black.
Material & Finish
0.5 mm spring-grade steel, matte black coating.
FAQ
Q: What makes U19 a hybrid?
A: It combines the melon-seed profile with internal arch spring geometry.
Q: What is the base width?
A: 6.5 mm at widest, 2.5 mm at the neck.
Q: Is 0.5 mm suitable for spring clips?
A: Yes, engineered for thousands of open-close cycles within the elastic range.
