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ECMA A20.50.03.01

Straight-Tuck Carton with Claw-Lock Top

  • 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.
  • Widest machinery capability in America via 30+ specialist partner plants.
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Product details

Top highlights

  • Positive-locking top resists accidental opening
  • Standard friction-tuck bottom for lightweight goods
  • Delivered flat for manual or automated assembly

About this product

This straight-tuck folding carton features a specialized claw-lock top designed to stay securely closed on the retail shelf. Instead of a simple friction fit, the main top flap uses rounded extensions that lock into angled slits on the inner flap, creating a mechanical hold that resists accidental opening.

Because the bottom relies on a standard friction tuck, this package is suited for lightweight consumer goods where top security is the priority, rather than heavy bottom-load capacity.

Common uses

  • Cosmetics
  • Pharmaceuticals
  • High-end lightweight retail goods
  • Small electronics accessories

Get a quote

Share what you know. We'll take it from there. Or email us at info@herculeindustrial.com

Best Price Guarantee

Already have a packaging quote? Let us beat it.

Send us the quote you have. We will beat it for the same specifications, quantity, and delivery requirements.

Upload a competing quote

Free quote review. No obligation.

30+specialist partner plants

We supply through the plant best suited to your price, material, production, and delivery requirements.

Why we can beat a lower quote

30+ plants give us more ways to lower the price.

Each plant has different machinery, material costs, order minimums, and freight rates. Our buying volume helps us secure better pricing. We then quote through the plant that gives you the lowest total price for your requirements.

Send us your current quote. Watch us beat it.

Attach it to the quote form or email it to us. We'll review it free and send you our price.

Upload a competing quoteinfo@herculeindustrial.com
Best Price Guarantee terms

To qualify, send a written supplier quote dated within the past 30 days and addressed to your company. It must cover the same dimensions, construction, material, print, finish, quantity, tooling, freight, delivery date, and delivery location. The guarantee does not cover taxes, expired quotes, liquidation or clearance sales, or obvious pricing errors.

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Retail and Lightweight Product Packaging

Secure retail presentation

The claw-lock top provides a cleaner, more secure closure than a standard tuck flap, reducing the need for clear seals on the top of the box. It is frequently used for retail items that might be handled by customers but need to remain closed until purchase.

Lightweight kitting and fulfillment

Because the bottom uses a simple friction tuck, the carton is easy to open and load by hand. It works well for lightweight kits, bottles, or tubes that will not put excessive downward pressure on the base.

High-end personal care packaging

The straight-tuck layout keeps the raw edge of the rear panel hidden, providing a clean front and back face for high-end graphics, while the locking top protects the presentation of lightweight jars and compacts.

Over-the-counter health products

The mechanical lock provides a reassuring click when closed, offering a slightly higher level of closure security than a standard flap, which is often preferred for vitamins and supplements.

Cosmetics, Pharmaceuticals, and Shelf Display

Cosmetics and beauty brands

Brands packing lightweight jars, compacts, and tubes benefit from the secure top closure and the uninterrupted front and back display panels.

Pharmaceuticals and supplements

Health product brands often require a closure that feels secure to the consumer. The claw lock provides that tactile feedback without requiring complex secondary packaging.

Small electronics accessories

For lightweight cables, chargers, or adapters sold in retail environments, the claw lock prevents the top from opening accidentally during shelf stocking and customer browsing.

When to Evaluate Different Closures and Bases

Heavy products requiring base support

The friction-tuck bottom can push open under heavy vertical loads. When packing dense items like glass jars or hardware, review a crash-lock or snap-lock bottom that physically interlocks to support more weight.

Automated cartoning without specialized tooling

While the straight-line side seam is easily glued, the claw-lock top involves specific folding motions or insertion equipment to engage the claws into the slits. If the cartoning line is not equipped for this, a standard tuck top may be a better fit.

Board Choice, Packing Line Setup, and Weight Limits

Board tear strength

The locking mechanism relies on the rounded claws sliding into narrow slits. If the chosen paperboard is too brittle or has low tear resistance, the claws can rip during opening or closing. Standard folding boxboard usually performs well, but recycled boards should be physically tested.

Manual versus automated loading

This carton is very efficient for manual packing lines, as operators can quickly open the tube, tuck the bottom, load the product, and lock the top. If the loading process will be automated, verify that the equipment can handle the precise insertion required by the claw lock.

Product weight and bottom security

Because the bottom is a friction tuck, the weight of the product rests entirely on the friction fit of the flap against the side walls. The product must be light enough not to push the bottom open during handling.

Outer shipping requirements

This is a primary retail carton, not a shipping container. The friction bottom and claw top can open during individual parcel shipping, meaning these cartons must be packed into a corrugated master shipper for distribution.

Adjusting the Claw Lock and Clearances

Claw radius and slit distance

The size of the locking claws and the distance between the receiving slits can be adjusted to change how tightly the top locks. However, these dimensions must remain perfectly matched; altering one without the other will cause the lock to tear or not engage properly.

Vertical offset of the female cuts

The position of the slits on the inner flap can be shifted slightly to adjust how deep the claws sit when fully engaged, accommodating different board thicknesses.

Dust flap height and taper

The inner dust flaps can be adjusted in height or given a tapered edge to prevent them from binding against the locking mechanism during assembly.

Board and packing details

Grain direction and panel bulging

Specifying a horizontal grain direction that wraps around the tube helps prevent the main front and back panels from bulging, ensuring a crisp, flat profile on the retail shelf.

Panel Layout Variants

Reverse-tuck panel arrangement

The standard straight-tuck layout places both the top and bottom closures on the same main panel. A reverse-tuck variant places them on opposite panels, which can sometimes improve how the flat blanks nest together on the printing sheet, potentially reducing material waste.

Additional notes

Print surface and straight-tuck layout

Because this is a straight-tuck carton, the front and back panels do not have raw paperboard edges visible from the front, making it an excellent choice for premium graphics and continuous wrap-around artwork.

Related Retail Cartons

A30.50.03.01: Scissor-Lock Bottom Carton

Review this option when the same secure claw-lock top is desired alongside a stronger, interlocking bottom closure for slightly heavier products.

FAQs

Closure and Security

Does the claw-lock top make the carton tamper-evident?

The claw lock provides a strong mechanical hold that resists accidental opening much better than a standard tuck flap, but it can still be opened and reclosed carefully. If strict tamper evidence is necessary, an external seal or label should be added.

Will the bottom hold heavy glass bottles?

The bottom uses a friction tuck, which relies entirely on the tight fit of the flap against the side walls. It is generally not suited for heavy items like large glass bottles, as the bottom can push open under the weight. A crash-lock or snap-lock base provides more support for heavier payloads.

Material and Print

Can recycled board be used for this carton?

Recycled board can be used, but its tear strength must be carefully evaluated. The claw-lock top relies on the board bending and engaging without tearing the rounded tabs. If the recycled board is too brittle, the locking mechanism may tear during use.

Production and Packing

Is this carton delivered flat?

The side seam is glued during manufacturing, and the cartons are delivered as flat sleeves. They are opened into a 3D tube on the packing line before the bottom is tucked and the product is loaded.

Can the claw-lock top be closed by automated machinery?

It can be automated, but it usually involves specific tooling. Unlike a simple friction tuck that can be pushed straight down, the claw lock requires the receiving flap to be folded first, followed by the precise insertion of the claws. Compatibility with the cartoning equipment should be verified.

Samples and Prototypes

What should a prototype test for this specific carton?

A physical sample should be used to verify that the chosen paperboard does not tear when the claws are engaged. It is also important to test the friction-tuck bottom with the actual product weight to ensure it does not push open during handling.

Shipping and Route

Can this carton be shipped directly in the mail?

This is a primary retail carton and is not designed for standalone parcel shipping. It should be packed inside a corrugated outer shipper for e-commerce fulfillment or wholesale distribution.

Material and Print

Does the straight-tuck layout affect the print surface?

Because both the top and bottom closures are attached to the same main panel, the front and back faces do not show raw paperboard edges. This provides a very clean canvas for premium graphics and continuous wrap-around artwork.