60Pcs M4 Counterbore Washers Anodized Aluminum Alloy Black For RC FPV Drones PCs Toys Mechanical Accessories Head Washers Gaskets Cup Shims Screw Hardware

60Pcs M4 Counterbore Aluminum Washers, Black Anodized
✔️ 60 pieces, M4 size, counterbore washers, black anodized finish

These lightweight aluminum washers are designed for RC, FPV drones, and hobby projects. The black anodized surface offers corrosion resistance and a clean finish for tight assemblies.

✅ Material: aluminum alloy
✅ Finish: black anodized
✅ Type: counterbored washer
✅ Size: M4 (4 mm)
✅ Quantity: 60 pieces

💡 What is a M4 counterbore washer used for in RC drones and mechanical assemblies? This handy piece helps spread clamping load and protect screw heads in tight builds.

- distributes load across surfaces for secure mounting
- compatible with M4 screws in RC drones and hobby machines
- reduces wear on aluminum parts and helps prevent loosening
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