M0.9 x 2.5mm Copper Hollow Rivet - 20pcs Pack for PCB Through-Hole Vias

Specifications

• Shank Outer Diameter (d): 0.9mm

• Shank Length (L): 2.5mm

• Flange (Head) Diameter: 1.94mm

• Wall Thickness: 0.3mm

• Head Thickness: 0.27mm

• Material: High-Purity Copper

• Quantity: 20 Pieces per pack

Key Applications and Projects

• DIY Double-Sided PCBs: Eliminating the need for jumper wires by creating permanent, solderable vias through the board.

• Commercial Board Repair: Replacing failed or high-resistance plated through-holes in vintage or damaged industrial electronics.

• Component Anchoring: Providing a reinforced mounting hole for high-stress connectors or heavy components that might otherwise pull off the copper trace.

Unlock New Capabilities (Project Evolution)

• Reliability Upgrade: Replace "wire-through-and-solder" vias with these copper rivets for a significantly higher current handling capability and a more professional aesthetic.

• Density Upgrade: Use these 0.9mm rivets to create smaller, more complex double-sided layouts that were previously impossible with manual wiring methods.

Package Includes: 

• 1 X 20 x M0.9(d) x 2.5(L)mm Copper Hollow Rivets

FREQUENTLY ASKED QUESTIONS (FAQ)

1. How many rivets are in this pack? This pack contains 20 individual rivets.

2. What size hole do I need to drill? Use a 0.9mm or 1.0mm precision drill bit.

3. How do I install them? Insert the rivet into the hole and use a flaring punch (or small center punch) to roll the hollow end over the PCB surface.

4. Is soldering required? It is highly recommended to solder both sides of the rivet to the copper pads for maximum electrical reliability.

5. Will these fit through a 1.6mm thick PCB? Yes, the 2.5mm length leaves about 0.9mm of material to flare over a standard 1.6mm board.

6. Are they real copper? Yes, they are solid copper for superior conductivity.

7. What is the head diameter? The flange (head) is 1.94mm wide.

8. Can I put a component leg through the center? If the leg is very thin, yes; the hollow center is roughly 0.3mm wide.

9. Can I use these for RF/high-frequency circuits? Yes, solid copper rivets provide a low-impedance path suitable for RF ground stitching.

10. Do they oxidize? Copper naturally darkens over time; soldering them quickly after installation preserves the connection.

11. Are they low profile? Yes, the head thickness is only 0.27mm.

12. Will they work on 0.8mm PCBs? Yes, though you will have more material to flare; you may need to trim them slightly for very thin boards.

13. Why are they hollow? Being hollow allows for mechanical deformation (flaring) and allows air to escape during soldering.

14. What is the shank diameter? It is exactly 0.9mm.

15. Can I use them for non-electronic projects? Yes, they are often used for micro-hinges in model making and jewelry.

16. Are they solder-friendly? Absolutely; copper is one of the easiest materials to solder to.

17. What happens if I don't flare them? They may fall out or create a poor electrical connection; flaring is essential for mechanical locking.

18. Can I use a hammer to set them? A light tap with a punch tool is better; a hammer alone may crush the board.

19. What is the total length? The total length from the head to the end is 2.5mm.

20. Is this pack size good for beginners? Yes, 20 pieces is perfect for a small prototyping project or practicing your flaring technique.