DG-BC065 | Custom Gift Box Metal Clasp – Floral Engraved Enamel Hinge Lock

Quick Answer

A gift box metal clasp is the hinge-and-lock hardware that holds the lid of a rigid gift or jewelry box shut while also acting as the visual centerpiece of the packaging. The custom gift box metal clasp shown here, model DG-BC065, pairs two mirrored floral medallion end-plates with a center hinge lock plate, all die cast in zinc alloy and finished with a two-tone enamel fill. Brands usually specify this style of clasp when a magnetic closure feels too plain for a premium unboxing moment but a full mechanical lock is more security than the box actually needs.

Key Takeaways

• Die-cast zinc alloy gives DG-BC065 the rigidity needed for repeated opening without the hinge loosening over time.
• The two-tone enamel fill sits inside recessed engraving rather than being painted over the surface, which is why the edges stay sharp after handling.
• Standard dimensions are 65mm overall length, 26mm end-plate width, 23mm side plate, and a 14.8mm hinge width, at 22.5g total weight.
• MOQ is 1000 pcs, and this can flex depending on finish complexity and how many enamel colors are requested.
• The center lock plate is engraved separately from the end-plates, so it can carry a private logo without changing the floral motif.
• Custom sample lead time runs 5–7 days once the mold or engraving plate is confirmed; bulk production is 10–15 days after that.
• Gold is shown here, but the same base casting accepts nickel, gunmetal, and antique brass plating.

What Makes This Different From a Magnetic Box Closure

One thing buyers often ask when they see this part for the first time is why a brand would choose a hinge clasp over a simpler magnetic strip. The honest answer is that a magnetic closure disappears into the box — it works, but it doesn’t do anything for the shelf presence of the packaging. A clasp like DG-BC065 sits on the outside of the lid and becomes part of the product photography. For jewelry boxes, tea packaging, and gift sets in the $30–$200 retail range, that visible hardware is often what a customer touches first, so the tolerance on the hinge action and the depth of the engraving matter more than they would on a hidden component.

Reading the Enamel Fill and Engraving

What Is Enamel Fill?

Enamel fill, sometimes called soft enamel or recessed color fill, is a colored compound flowed into engraved channels on a die-cast base and then cured. On DG-BC065 the grey-white fill sits below the gold ridgelines of the floral pattern, so the metal edge protects the color from wear at the points where fingers naturally make contact when opening the box.

Why the Fill Depth Matters

During prototype development we’ve seen customers request a shallower engraving to save on material, and it almost always backfires — a shallow channel holds less enamel, and the fill can chip out after a few hundred open-close cycles in transit testing. The depth used on this part is calibrated so the enamel layer stays below the metal surface line, not flush with it.

Enamel Fill vs Cold Paint Fill

Zinc Alloy vs Brass for Box Hardware

When customers compare suppliers on material, the zinc alloy versus brass question comes up almost every time, so it’s worth laying out plainly rather than defaulting to “brass is better.”

For a flat hinge clasp like this one, zinc alloy is the practical choice — the die casting process reproduces the floral engraving accurately, and the part doesn’t carry structural load the way a bag hardware component does, so the added weight of brass isn’t buying the buyer anything.

Understanding the Hinge Mechanism

The center hinge is the part of this clasp that determines whether it feels premium or cheap in the customer’s hand. A 14.8mm hinge width was selected here because it gives enough surface area for two pin points, which keeps the lid from twisting sideways when it’s opened one-handed — a common complaint with narrower single-pin hinges on smaller box hardware. Rather than simply widening the hinge for strength, the pin diameter and the clearance between the hinge knuckles are matched so the action stays smooth without becoming loose after repeated use.

Technical Drawing Explanation

The dimension drawing on this part isn’t just a manufacturing reference — each measurement affects how the clasp performs on the box.

• Overall Length (65mm): Determines the footprint on the box lid and how far the two end-plates sit from the box edges; this needs to match the box width to avoid overhang.
• End-Plate Width (26mm): Sets how much engraving area is available — too narrow and the floral detail gets compressed and loses clarity.
• Side Plate (23mm): This is the visible depth of the piece when the box is viewed from the front, which affects perceived proportion against the lid.
• Hinge Width (14.8mm): Controls swing stability, as explained above — narrower hinges wobble under lateral pressure.
• Weight (22.5g): A useful check figure for QC — a casting that comes in noticeably under this weight usually means a thin-wall defect or incomplete mold fill.
• Center Lock Plate: Sized independently from the end-plates so it can be re-engraved for a private logo without retooling the whole clasp.

Inside Our Manufacturing Process

We walk most new OEM customers through this sequence during their first project, since it explains where the lead time actually goes.

1. Raw Material: Zinc alloy ingots are melted and prepared to the alloy ratio specified for the part thickness.
2. Die Casting: The molten alloy is injected into the steel mold under pressure, forming the floral pattern and hinge knuckles in one shot.
3. Trimming: Excess flash from the casting gate is removed by hand and by press trimming.
4. Grinding: Rough edges around the engraving are smoothed so the enamel channels are clean before filling.
5. Polishing: The part goes through multiple polishing stages, not one — the first pass evens out the casting surface, and later passes bring up the mirror finish on the raised gold areas without rounding off the engraved lines.
6. Assembly: The hinge pin is set and the two end-plates are joined to the center lock plate, then checked for smooth swing.
7. Electroplating: Parts are hung on racks and plated in sequence — hanging (rather than barrel plating) protects the fine engraving from surface contact during the process.
8. Enamel Filling: Color compound is applied into the recessed channels and cured before final inspection.
9. Salt Spray Testing: Sample batches are tested to check plating adhesion and corrosion resistance under accelerated conditions.
10. 100% Inspection: Every piece is checked for weight, hinge action, and enamel fill quality before packing — this is where underweight or chipped-fill parts get pulled.
11. Packing: Finished clasps are packed in pearl foam trays inside an OPP bag, then boxed in export cartons.

Factory Expert Tips

• Choosing plating color: Gold plating shows fingerprints more readily than gunmetal — if the box will be handled frequently in retail, gunmetal or a matte gold finish holds up better visually between cleanings.
• Choosing enamel colors: Two-tone fills read more clearly at a distance than three or more colors on a pattern this size; additional colors tend to blur together on smaller floral details.
• Evaluating a hinge before ordering: Ask for a working sample and open it 50–100 times by hand. A hinge that starts to feel gritty or uneven within that range usually indicates a tolerance issue that will only get worse.
• Reducing return rate on custom logos: Send vector artwork rather than a raster image for the center lock plate — engraving depth is easier to control accurately from clean line work.
• Evaluating a supplier’s die casting capability: Ask to see a part with fine raised detail similar to this floral pattern; die casting quality is easiest to judge on decorative parts, not flat or simple shapes.

Common Buying Mistakes

• Choosing hardware based only on the product photo without requesting a physical sample first.
• Assuming all “gold plating” is the same thickness and durability across suppliers.
• Overlooking hinge tolerance, which affects long-term feel more than the finish does.
• Not confirming enamel fill depth, which determines whether the color chips during shipping and handling.
• Skipping salt spray or plating adhesion questions until after tooling is already paid for.
• Assuming a lower MOQ quote always means a better deal, without checking whether it includes full QC inspection.

Who This Clasp Is Built For

Suitable for luxury gift and jewelry brands that want packaging hardware to double as a design element, fashion and beauty brands building limited-edition box sets, and OEM factories sourcing decorative closures for tea, cosmetics, or accessory packaging. It’s less suited to high-volume, low-cost mailer packaging, where a simpler ribbon tie or magnetic tab will meet the budget better than a die-cast enamel clasp. Small-MOQ designers testing a new box design should expect to work within the 1000 pcs minimum, or ask about combining it with an existing production run.

OEM Customization Options

This clasp is built on a modular tooling approach, which keeps customization manageable without a full new mold for every request.

• Custom Mold: Available for a different overall shape or size beyond the floral motif shown.
• Laser Logo / Emboss Logo / Deboss Logo: All three are options for the center lock plate, independent of the end-plate pattern.
• Oil Filling: An alternative to enamel fill for lower-cost color applications on less exposed surfaces.
• Electroplating: Gold, nickel, gunmetal, antique brass, and rose gold are common finish requests.
• Private Label: Center plate re-engraving supports brand-specific logos at OEM volumes.
• Packaging, Barcode, Hang Tag, Retail Box: Available on request for brands that need the clasp itself retail-ready as a standalone accessory.

Where This Hardware Gets Used

A European tea packaging brand we worked with initially asked for a magnetic closure on a rigid gift box, but during sampling they found the magnet strength needed for their lid weight made the box difficult to open with one hand — a problem for their target gifting use case. Switching to a hinge clasp similar to this one solved the mechanical issue and, as a side benefit, gave them a branded surface on the center plate they hadn’t originally planned for. That kind of trade-off comes up often: buyers start with a closure requirement and end up choosing hardware that also solves a branding need.

Care & Maintenance

Zinc alloy hardware with an enamel fill responds differently to storage and handling conditions than raw metal fittings, so a few points are worth passing along to retail teams:

• Humidity: Store finished boxes in low-humidity conditions where possible — prolonged moisture exposure can affect plating over long storage periods.
• Acid Contact: Avoid contact with perfumes, hand sanitizer, or cleaning agents, which can dull plating finish over time.
• Transportation: Pack boxes so the clasp isn’t under direct pressure from stacked cartons, since the enamel fill is more resistant to wear than to sharp impact.
• Cleaning: A dry, soft cloth is sufficient for dust; avoid abrasive cleaners on the enamel sections.

Frequently Asked Questions

What is the MOQ for this gift box clasp?

Standard MOQ is 1000 pcs, and this is negotiable based on finish complexity, number of enamel colors, and whether it’s combined with another order.

Can the center plate be engraved with our own logo?

Yes. The center lock plate can be laser engraved, embossed, or debossed with a private logo, separate from the floral end-plate design.

How long does sampling take?

Custom samples, including a new logo engraving, typically take 5–7 days. Free stock samples of the standard design are available and usually ship within 1–3 days.

What’s the difference between custom and stock samples in terms of cost?

Free stock samples are available for the design shown here. Custom sample fees apply for tooling or logo changes, and those fees are fully deductible from a confirmed bulk order.

What finishes are available besides the gold shown?

Nickel, gunmetal, antique brass, and rose gold plating are common alternatives on the same base casting.

Do you provide quality certifications?

We maintain quality certification documentation and are happy to provide the current valid certificates upon request during your sourcing evaluation.

What packaging does the clasp ship in?

Pearl Foam + OPP Bag + Export Carton as standard, or Customized Packaging if your project requires branded packaging for the hardware itself.

How long is production and delivery after sampling is approved?

Production runs 10–15 days, and delivery typically takes 10–15 days depending on destination and shipping method.

Why Work With DG Buddy

We’ve been producing decorative and functional box hardware for close to two decades, which means our tooling team has already solved most of the recurring issues — enamel fill chipping, hinge play, plating adhesion on fine engraving — before a new customer ever runs into them. Our engineering team reviews technical drawings before quoting, not after, which avoids the back-and-forth that slows down a lot of OEM projects. Every batch goes through 100% inspection before packing, and we stay responsive through sampling and production rather than going quiet after the deposit is paid.

Related Categories

• Decorative Box Lock Hardware
• Bag Chain Strap Hardware

Related Products

• Custom Metal Logo Plate
• Decorative Ring Hardware for Packaging Accents

Next Steps

If you already have technical drawings or a reference sample, send them over and we’ll confirm feasibility and tooling cost directly. If you’re still evaluating suppliers, a free stock sample of this design is available so you can check the enamel fill and hinge action firsthand before committing to a custom mold. We’re happy to review your box dimensions and suggest whether this hinge width and material fit your project.