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EVF41164

Six Hook Lock Corner Tray

Available in a wide range of custom configurations & material selection.
Order 1 sample. Or order 100K+ units. Or anything in between.
Affordable delivery across North America.
Design support, warehousing, testing, assembly available.
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Product details

Top highlights

Unglued, one-piece construction with an attached hinged lid
Secured by six mechanical hook-and-slit corner locks
Delivered flat for manual assembly at the packing station

About this product

The EVF41164 is a one-piece, flat-packed folding carton that forms a sturdy presentation tray with an attached hinged lid. Instead of relying on pre-applied adhesive, it uses six mechanical hook locks (four on the base and two on the lid) to secure the corners, creating a clean, premium aesthetic with no visible glue seams.

Because it requires no gluing during manufacturing, this style is very efficient to produce and ships completely flat. However, the intricate hook-and-slit engagement requires manual assembly and is very sensitive to board thickness, making it a strong fit for paperboard rather than corrugated material.

Common uses

Bakery and confectionery
Boutique apparel
Retail gift kitting

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Retail Presentation and Kitting

Premium Retail Presentation

The lack of glue seams and the crisp, single-wall construction make this a strong choice for high-end retail display. The hinged lid opens cleanly to reveal the product, offering an unboxing experience similar to a rigid setup box but at a lower material cost.

In-Store Kitting and Gifting

Because the boxes store flat and require no equipment to assemble, retail staff can build them on demand for gift sets, apparel, or specialty foods. The mechanical locks hold the shape securely once engaged.

Flat-Packed Storage Programs

Because the entire tray and lid assembly stores flat, it is very efficient for retail backrooms or fulfillment centers with limited shelf space.

Unglued Food Service

The mechanical locks eliminate the need for adhesive, making it a clean choice for bakeries and specialty food counters where staff assemble the tray right before loading.

Boutique, Bakery, and Apparel Packaging

Bakery and Confectionery

A classic choice for pastries and cakes, offering a wide top-loading area and a secure, integrated lid that will not get separated from the base in a busy kitchen.

Boutique Apparel and Accessories

Provides a structured, gift-ready presentation for folded garments, scarves, or leather goods without the bulk of a corrugated mailer.

Corporate Gifting and Event Kits

Provides a structured, single-piece presentation that opens cleanly, offering a premium unboxing experience for curated gift sets without the cost of a rigid setup box.

When to Consider Glued or Double-Wall Trays

High-Speed Packing Lines

If your operation relies on automated carton erectors or requires instant pop-up assembly, look at a 4-corner glued tray. The six manual hook locks dictate a slower, deliberate packing rhythm.

Heavy or Courier-Shipped Goods

This carton relies on friction and paperboard hooks. If the package will be shipped directly through parcel networks without an outer shipper, consider a corrugated roll-end lock-front tray for greater durability and crush resistance.

Board Choice and Assembly Labor

Board Caliper and Material Fit

The hook-and-slit mechanism is very sensitive to material thickness. This design is built for standard folding carton boards like FBB or SBS. Corrugated flutes can crush or fail to engage the hooks properly, leading to weak corners.

Assembly Labor

Since the box is delivered flat and unglued, the cost of assembly shifts to your fulfillment team or retail staff. Ensure your packing environment can accommodate the multi-step folding process required to seat all six locks.

Print and Finish Zones

The flat blank allows for edge-to-edge printing and specialty finishes. However, heavy gloss or lamination near the locking tabs should be tested so the friction locks do not slip.

Transit and Outer Packaging

This tray relies on friction locks. If shipping directly through a parcel network, you will need an outer shipper or a secure tamper-evident seal to keep the lid and base locks closed.

Hook Geometry and Lid Clearances

Hook and Slit Proportions

While the length, width, and height are fully adjustable, the depth and width of the hook cuts scale with the carton height. Modifying these lock proportions requires careful testing to ensure the corners stay secure without tearing the paperboard.

Lid Clearance and Step Creases

The template automatically calculates the necessary step crease and width clearance so the hinged lid closes smoothly over the base tray, even as board thickness changes.

Base and Lid Depth

The height of the base walls dictates the depth of the tray and the scale of the hook cuts. Adjusting the depth requires checking that the resulting locks remain strong enough for the intended paperboard.

Packing details

Flat Delivery and Storage

By bypassing the folder-gluer entirely, this carton maximizes pallet density. It is a strong choice when warehouse space is limited but a rigid presentation box is required.

Print and Finish Opportunities

The flat, unglued blank allows for edge-to-edge printing, foil stamping, and embossing without the risk of finishes interfering with adhesive zones.

Additional notes

Surface Finishes and Lock Friction

Because the corners rely on friction to stay closed, heavy laminations or high-gloss coatings on the locking tabs should be tested to ensure they do not cause the hooks to slip out of their slits.

FAQs

Can this box be made from corrugated board?

This design is built for folding carton boards like FBB or SBS. Corrugated flutes can crush during assembly, making the intricate hook locks prone to slipping.

Does this carton require glue or tape?

It requires no glue for assembly. However, if you are shipping it through a parcel network, it will need an outer shipper or a secure tamper-evident seal to prevent the friction locks from popping open during transit.

How is the box delivered?

It is delivered completely flat. Your team will fold the walls and engage the six hook locks to build the tray and lid.

Is this suitable for automated packing?

The multi-step process of aligning and inserting the male hooks into the female slits requires manual assembly.

Can the lid be separated from the base?

The lid is structurally attached to the back wall of the base tray, creating a single-piece hinged presentation.

Will the lid fit properly if I use a thicker paperboard?

The template automatically adjusts the lid width and the step creases based on the specified material thickness, ensuring a smooth closure.

How long does it take to assemble?

Because it requires seating six individual hook locks by hand, assembly is slower than a pop-up glued tray. It is best suited for lower-volume packing or on-demand retail use.

Does the flat blank take up much space?

The one-piece design with an attached lid creates a longer flat blank than a separate base and lid, but it still stores very efficiently compared to pre-glued trays.