Installation Type
Custom Address Signs
Metal mail slots are used when mail needs to pass directly through a door, wall, or entry panel without using an external mailbox. Compared with plastic or lightweight parts, metal mail slots offer better strength, improved appearance, and longer service life.
They are commonly used on front doors, wooden doors, metal doors, apartment doors, office doors, and building entrance systems. For project buyers, the key concerns are usually material thickness, finish consistency, smooth flap movement, weather resistance, and easy installation.

Metal mail slots can be used across residential, commercial, and OEM hardware projects.

A clean solution for daily letter delivery through wooden, steel, or composite doors.
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Suitable for multi-unit buildings where each door needs a direct mail receiving point.
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Used for document delivery, notices, and after-hours mail access in commercial buildings.
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Available for wholesalers, door hardware suppliers, and replacement part programs.
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| Item | Common Options |
|---|---|
| Product Type | Metal mail slot, door mail slot, wall mail slot, interior mail slot cover |
| Material | Stainless steel, aluminum, brass, zinc alloy, powder-coated steel |
| Finish | Brushed steel, polished brass, matte black, bronze, silver, custom powder coating |
| Installation | Door mounted, wall mounted, front access, interior cover plate |
| Flap Style | Single flap, double flap, spring flap, gravity flap |
| Size | Standard size or custom opening size |
| Thickness | Customized according to strength and project requirements |
| Logo | Laser marking, stamping, printed logo, private label |
| Packaging | Bulk packaging, retail box, custom OEM packaging |
| Application | Homes, apartments, offices, schools, commercial buildings |

We support custom metal mail slot production for brands, importers, builders, and project suppliers.
If your market requires a specific door thickness, opening size, finish color, or installation style, we can help adjust the product structure. Custom options can include flap size, trim plate design, screw hole position, spring tension, surface treatment, logo marking, and packaging.
For distributors and hardware brands, we can also support stable repeat production, private label packaging, and product line development for different price levels.
Stable supply for door hardware brands, mailbox suppliers, and building material distributors.
Metal mail slots may look simple, but poor-quality products can cause real problems: loose flaps, uneven finishes, sharp edges, weak springs, rust, poor packaging, and inconsistent sizes between batches.
We focus on practical manufacturing details so your products are easier to sell, install, and reorder. From sampling to bulk production, we help control material selection, surface finish, product fit, and packaging quality.
We can produce metal mail slots in stainless steel, aluminum, brass, zinc alloy, and powder-coated metal, depending on your design and budget.
Yes. We can customize the slot opening, outer frame size, trim plate, screw holes, and flap structure according to your door or wall design.
Yes. Matte black, satin black, and other powder-coated finishes are available for modern door hardware collections.
Yes. Brass mail slots can be produced for traditional doors, premium hardware lines, and replacement projects.
Yes. We can recommend suitable materials and finishes for exterior door applications, such as stainless steel, coated metal, or brass.
Yes. We can supply matching interior trim plates or covers to improve the inside appearance after installation.