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When your project demands a flat, round metal blank that fits exactly right the first time, generic hardware store stock rarely cuts it. Whether you're a maker, plumber, jeweller, or engineer, sourcing brass discs in the exact diameter and thickness you need — without ordering a full sheet — is a constant frustration. These brass disc blanks solve that problem directly.
Each disc is cut from solid brass stock, delivering a warm gold tone with a smooth, flat face. Diameter options span 20mm to 150mm (approximately 0.79" to 5.91"), and thickness is available in 1mm (~0.039") or 2mm (~0.079"). The round profile is consistent and burr-free, ready for immediate use or further finishing.
Typical applications include brass gasket blanks for plumbing and fluid fittings, decorative disc inserts for lighting fixtures and lamp parts, stamping and engraving blanks for jewellery and craft projects, and spacer or shim stock in mechanical assemblies requiring a non-ferrous, corrosion-resistant material.
Made from solid brass for reliable conductivity, machinability, and a naturally corrosion-resistant surface — no plating to chip or flake over time.
Available from 20mm to 150mm (0.79"–5.91") to cover a broad range of gasket, craft, and engineering applications without custom cutting.
Choose 1mm for lightweight shim and decorative use, or 2mm for heavier-duty gasket and structural applications — both cut to consistent tolerance.
Each disc is finished with smooth edges, reducing prep time and making them safe to handle and ready to stamp, drill, or install directly.
Order from 1 to 30 pieces per listing to match your project scale — ideal for prototyping single units or stocking up for repeat repairs.
Used as plumbing gasket blanks, lamp fixture discs, jewellery stamping rounds, engraving blanks, and non-ferrous spacers in mechanical assemblies.
| Material | Brass (copper-zinc alloy) |
|---|---|
| Color / Finish | Gold tone, natural brass |
| Shape | Round / Disc |
| Diameter Range | 20mm – 150mm (0.79" – 5.91") |
| Thickness Options | 1mm (~0.039") or 2mm (~0.079") |
| Edge Finish | Smooth, burr-free |
| Surface | Flat, uncoated |
| Quantity per Order | See variant options (1–30 pcs) |
| Typical Use | Gaskets, stamping blanks, lamp parts, shims, spacers |
| Machinability | Suitable for drilling, stamping, engraving, and soldering |
Measure the inner bore or recess of your fitting, then select a disc diameter that matches or slightly exceeds it. For plumbing gaskets, the disc should fully cover the seating face. Use a calliper for accuracy — our range covers 20mm to 150mm in standard increments.
The 1mm disc is suited to lightweight applications such as decorative inserts, shims, and jewellery blanks where minimal stack height matters. The 2mm disc provides greater rigidity and is better for gasket sealing, structural spacers, and applications where the disc must resist compression or deformation under load.
Brass has inherent corrosion resistance due to its copper-zinc composition, making it suitable for damp environments, plumbing applications, and moderate outdoor exposure. For prolonged submersion or highly acidic environments, consider applying a clear lacquer or sealant to the surface.
Yes. Brass is a free-machining alloy that responds well to drilling, stamping, engraving, and soldering. Use standard HSS drill bits at moderate speed with light lubrication. For stamping, the 1mm thickness is more workable; the 2mm disc requires a heavier press or more force.
These discs are commonly used as decorative backing plates and spacers in lamp and lighting assemblies. Match the disc diameter to your fixture's mounting plate or canopy opening. The gold brass tone complements most traditional and industrial lighting styles.
For single repairs or prototyping, a quantity of 1–2 is sufficient. For ongoing projects, craft batches, or workshop stock, ordering 10–30 pieces reduces per-unit cost and ensures you have spares on hand. Quantity options are selectable directly from the variant menu above.
The discs arrive with a natural brass finish — flat, smooth, and burr-free. They can be used as-is for most gasket and mechanical applications. For decorative or jewellery use, you may wish to polish, patinate, or lacquer the surface to your preferred finish.
