WUTA Brass Concave H-Shaped Screw Studs
Brass screw rivets with a concave head
Brand: WUTA
H-shaped brass rivet with a curved concave head on one end and a flat-slot screw on the other.
Features
- Copper color, 2 pieces per package. Smooth head/edge, easy installation; for waist/shoulder bags, keychains, belts, clothing/footwear trim, and custom leatherwork.
- Various sizes; a 0.5–1 mm hand-measurement tolerance and slight color variation between electroplating batches are possible.
- A dense protective oxide layer can form on the brass surface, and polishing restores its shine. The source lists oxalic acid, dilute hydrochloric acid, and vinegar for rust removal.
- The head diameter is 10 mm and the post diameter is 5 mm in all sizes. Post usable length / assembled total height pairs: 4/10, 5/11, 6/12, 8/14, 10/15, and 12/17 mm. The image recommends a 5 mm round punch for everyday installation. Each option card states 2 pieces.
- One head is concave, the opposite side is a flat-slotted screw. The image describes the material as brass, a copper-zinc alloy, and emphasizes its yellow color and resistance to wear, water vapor, and corrosion. The source's general claim that brass has higher density and hardness than copper is not a verified material certification.
- The care image notes the oxidation layer and the return of shine through friction during use. The source lists cleaning with oxalic acid, diluted hydrochloric acid, vinegar, and paper ash; it does not give concentration or application time.
Specifications
| Product group | Hardware |
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| Material | Brass |
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| Color | Copper |
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| Kit | 2 pieces |
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| Head/shaft diameter (per diagram) | 10/5 mm (head/shaft diameter, per photo) |
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| Usable / overall length (per diagram) | 4/10;5/11;6/12;8/14;10/15;12/17 mm (usable/overall length, per photo) |
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| Manufacturer's product name | Solid Brass Chicago Screws Nail Concave Head Rivets Durable| WUTA |
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