Brass Flat Washers, M2–M12 Size and Pack Options

Spread a fastener's contact pressure with a correctly sized washer

A bolt or screw head can concentrate pressure on a small area when the assembly calls for a wider bearing surface. These brass flat washers provide a simple component option for compatible fastening work, with multiple inner-size, outer-size and thickness combinations. Choose the exact variant rather than treating the listing as one mixed assortment.

Brass is the stated material. The flat ring shape sits around a suitable bolt or screw and presents a broader contact area against the joined surface. Whether that is appropriate depends on the assembly requirements, the surrounding materials and the fastener specification. A washer is not a guarantee that an unsuitable connection becomes safe or correctly engineered.

The offered fastener sizes range from M2toM12, with thickness options across0.4to2mm. Pack quantities vary among28, 58, 110and220pieces. Each option label combines its quantity and dimensions, such as28Pcs M8x16x2mm or220Pcs M2x5x0.4mm. Read the whole label:the quantity and outer dimensions can change even where the nominal fastener size stays the same.

For an organised workshop, keep different variants separated and labelled so a similar-looking ring is not mistaken for the required size. Compare the existing specification with the chosen washer before installation. The listing does not establish a pressure-sealing rating, electrical safety approval or a universal substitute for a crush washer. Use appropriate hardware and assembly guidance for the particular project. The useful feature here is the ability to select a defined brass flat-washer size and quantity rather than relying on a general-purpose mixed bag.

Details for your selection

Material:brass. Nominal fastener options M2, M2.5, M3, M4, M5, M6, M8, M10, M12. Thickness range0.4–2mm across variants. Quantities28/58/110/220depending on option. Exact quantity and inner/outer/thickness combination are given in the selected variant label.

Check the selected option before use

A useful accessory starts with matching the actual item to the task in front of you. Compare the stated dimensions, configuration and quantity with your own setup rather than assuming that similar-looking products are interchangeable. Where a particular measurement or operating detail is not supplied, establish it before relying on the item for that requirement. The selected variant label is part of that comparison, especially when several options are shown together.

Keep the item with the related equipment so its purpose and specification remain easy to identify later. Follow the instructions supplied with the actual product and inspect it before use. Photographed props illustrate a possible context, not a guarantee of additional contents. Choose according to the confirmed features rather than an unmeasured performance promise.