The chain is fine...but I ordered the wrong size. Nine links of the chain I ordered equals six of the size I wanted. My error...
How can I straighten out the springs? I can't use them coil uo as is.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Get fitment advice & recommendations
When your project demands a flat, dimensionally consistent metal blank that machines cleanly and resists corrosion without coatings, finding the right brass disc in the exact diameter and thickness can be frustrating. Hobbyists, machinists, jewelers, and engineers all face the same problem: generic stock that forces compromise. These H62 brass solid round discs are stocked in a wide matrix of diameters and thicknesses so you can order exactly what your application requires.
Each disc is cut from H62 brass alloy — a copper-zinc composition known for its balance of strength, ductility, and machinability. Diameters range from 10 mm (approx. 0.39 in) to 100 mm (approx. 3.94 in), with thickness options spanning 0.3 mm to 6 mm. Faces are flat-rolled with consistent surface finish suitable for further machining, stamping, or decorative finishing.
These H62 brass discs are well suited for use as bearing spacers and thrust washers in mechanical assemblies, as blanks for custom gaskets or seals, as decorative inlays or medallions in woodworking and furniture, and as raw stock for jewelry fabrication, engraving, and etching projects where a solid round brass sheet is the starting point.
| Material | H62 Brass (Copper-Zinc Alloy) |
|---|---|
| Shape | Solid round disc (no center hole) |
| Diameter Range | 10 mm – 100 mm (select variants up to 120 mm) |
| Thickness Range | 0.3 mm – 6 mm |
| Surface Finish | Flat-rolled, mill finish |
| Tensile Strength | Typically 330–420 MPa (H62 alloy) |
| Hardness | See variant options |
| Packing Quantity | See variant options (1, 2, or 4 PCS depending on size) |
| Weight per Piece | See variant options |
| Pre-drilled | No — solid blank |
| Compatible Applications | Spacers, gaskets, jewelry blanks, decorative inlays, machining stock |
Measure the bore or recess your disc needs to fit, then add any required clearance. For spacers and washers, match the outer diameter to the housing bore and select a thickness equal to the required axial gap. For decorative inlays, measure the routed pocket diameter and choose the closest disc size. When in doubt, order one size up — brass is easy to turn down on a lathe or sand to fit.
H62 brass (also known as C27200 or similar in international standards) typically has a tensile strength of 330–420 MPa and a Vickers hardness of approximately 80–120 HV in the as-rolled condition. These values can vary slightly depending on thickness and rolling reduction. For structural load-bearing applications, consult a materials engineer to confirm suitability.
H62 brass naturally develops a patina (surface oxidation) when exposed to air and humidity, shifting from bright yellow to a darker golden or brownish tone. This patina is stable and does not indicate structural degradation. For applications requiring a bright finish, apply a clear lacquer or brass polish after installation. In marine or high-humidity environments, consider a protective coating for long-term appearance.
Yes. H62 brass is classified as a free-cutting alloy and works well with HSS and carbide tooling for drilling, turning, milling, and tapping. Use cutting speeds appropriate for brass (typically higher than for steel) and avoid excessive feed pressure on thin discs (0.3–0.5 mm) to prevent deflection. A backing plate is recommended when drilling thin stock.
Solid brass discs can function as crush gaskets or soft-metal seals in low-to-medium pressure applications (e.g., hydraulic fittings, spark plug seats, banjo bolts) where the disc is compressed to form a metal-to-metal seal. Select a thickness appropriate for the required crush depth. These discs are not pre-annealed; if a softer gasket is needed, anneal the disc by heating to approximately 425–500°C and quenching in water before use.
Thin discs (0.3–0.5 mm) are best for shim stock, decorative overlays, and applications where minimal added height is critical. Mid-range thicknesses (0.8–2 mm) suit spacers, washers, and jewelry blanks that need some structural rigidity. Thicker discs (3–6 mm) are appropriate for machined components, bearing retainers, and parts that will be drilled, tapped, or turned to a finished profile. When in doubt, choose a thickness that gives you material to remove rather than one that is already at the minimum.
Packing quantity is shown as a variant option (1 PCS, 2 PCS, or 4 PCS) and varies by diameter and thickness combination. Smaller, lighter discs are typically packed in 2- or 4-piece quantities; larger or thicker discs are sold individually. The quantity is clearly listed in the variant selector — select your preferred combination to see the exact pack size before adding to cart.