Moon Shape Silver Turn Button Clip – U20 Complete Guide
The Moon Shape Silver Turn Button Clip (SKU: U20) is XKY Framing’s specialist fastener for curved picture frames. Its crescent profile with two 2.5 mm mounting holes spans 33.5 mm and is engineered to follow the inner contour of round, oval, and arched mouldings, providing a flush, gap-free backing lock that flat clips cannot achieve.
Why Choose the Moon Shape Silver Turn Button Clip?
Round and oval frames have curved rabbets that standard flat clips cannot bridge effectively. The U20 Moon Shape Silver Turn Button Clip follows this curve naturally, distributing holding force evenly along the arc and preventing the backing board from bowing or lifting at any point around the circumference.
Key Dimensions
Total length (span): 33.5 mm. Span width: 22 mm. Tail width: 2.5 mm. Hole diameter: 2.5 mm × 2. Thickness: 0.4 mm. Inner radius: approx. 21 mm.
Installation
Position the Moon Shape Silver Turn Button Clip with the crescent inner edge against the backing board. Fasten both holes with 2.5 mm screws or brads. Rotate 45° to lock. Use 6–8 clips evenly spaced around a round frame’s circumference.
Related Products
For black crescent see U21 Moon Shape Black Turn Button Clip. For round disc clips see U22 Round Disc Metal Turn Button Clip.
Material & Finish
0.4 mm cold-rolled steel, brushed silver electrophoretic coating.
FAQ
Q: Why does U20 have two holes?
A: Two holes fix both ends of the crescent span, locking the backing across the full curve.
Q: What is the inner radius?
A: Approximately 21 mm — suited to round frames 42 mm diameter or larger.
Q: Can U20 be used on rectangular frames?
A: Not recommended; it is specifically engineered for curved frame profiles.
