These 30mm black engraved number discs provide clear, permanent identification for lockers, internal doors, cupboards, desks, storage areas and other flat indoor surfaces.

Each disc is manufactured from two-layer ABS plastic with a black face and contrasting white layer beneath. Engraving removes the black surface to reveal the white number or short wording, so the identification is cut into the material rather than printed or applied as a sticker.

The discs have no fixing holes, providing a clean appearance when mounted onto a flat surface. They can be ordered with an optional self-adhesive backing or supplied without adhesive.

Key Features

• Custom engraving: Order consecutive numbers, repeated sets or your own non-sequential numbering.
• Clear black and white contrast: The black surface is engraved to reveal the white layer underneath.
• Permanent identification: Numbers and wording are engraved into the material and cannot peel away like a printed label.
• No fixing holes: Designed for mounting directly onto lockers, doors, cupboards and other smooth surfaces.
• Optional adhesive backing: Add a 25mm diameter self-adhesive pad for straightforward installation.
• Choice of fonts: Select your preferred engraving font from the available product options.
• Optional number underlining: Numbers such as 6 and 9 can be underlined to make their orientation immediately clear.

Specifications

• Shape: Round
• Diameter: 30mm
• Disc thickness: Approximately 1.2mm
• Material: Two-layer engraved ABS plastic
• Face colour: Black
• Engraved character colour: White
• Fixing holes: None
• Adhesive backing: Optional
• Adhesive-pad diameter: Approximately 25mm
• Adhesive-pad thickness: Approximately 1mm
• Recommended use: Indoor use

Optional Self-Adhesive Backing

The optional adhesive backing consists of a 25mm diameter pad positioned on the reverse of the 30mm disc. This leaves an approximately 2.5mm border between the edge of the adhesive pad and the outer edge of the disc.

The pad is approximately 1mm thick and therefore adds around 1mm to the fitted depth of the disc. For the strongest adhesion, apply the disc to a clean, dry and reasonably smooth surface.

When adhesive backing is not selected, the disc is supplied without a fixing hole or adhesive pad, allowing you to choose your own suitable mounting method.

Numbering and Engraving Options

Discs can be engraved with consecutive numbers, repeated sets or your own non-sequential list. Short letters, prefixes and references may also be included, subject to the available engraving space.

Examples include:

• 1-100
• Two sets of 1-20
• Room 1 to Room 25
• A1-A20
• 2, 5, 8, 12A, 12B

Select your preferred font and enter all required numbers or wording in the engraving details box.

Please ensure that the quantity added to your basket matches the total number of discs required. For example, two sets of numbers 1-20 require a total quantity of 40 discs.

Suitable Applications

These engraved black and white number discs are suitable for indoor identification applications including:

• Locker doors in schools, gyms and changing rooms
• Internal doors and rooms
• Cupboards and storage units
• Desks and workstations
• Key cabinets and storage boards
• Shelving and equipment identification
• Office, workshop and warehouse organisation

Colour note: The engraved characters appear white under normal viewing conditions but have a slight off-white hue when examined closely. This is a characteristic of the contrasting material layer and does not affect legibility or performance. Samples are available on request.

Please note: These ABS plastic discs are intended for indoor use. They are not sold as UV-stable or weatherproof exterior labels.