• Material: Stainless steel.
  • Dishwasher: Yes.
  • Fits: Stainless Steel Lunch Box in 27 oz, 40 oz and 47 oz. The size is stamped on the base.
  • Best for: A box that has started springing open in a bag. Two minutes to swap, no tools.

Which lunch boxes does this locking bar set fit?

It fits the Blockhütte Stainless Steel Lunch Box. Choose the variant that matches your box: 27 oz, 40 oz or 47 oz. The size is printed on the base of the box.

When do I need new locking bars?

When a bar is bent, has lost its spring tension or no longer pulls the lid down evenly. If the lid sits loose even though the seal is fine, the locking bars are usually the reason.

What are the locking bars made of?

Stainless steel, like the box itself, rust-resistant and dishwasher safe.

Can I replace the locking bars myself?

Yes. The bars hook into the fittings on the box body and can be swapped at home in a few minutes, no tools needed.

Is a broken locking bar covered by the warranty?

Within the 3-year warranty a defective part is replaced free of charge. Use the exchange form on the help and contact page. This set is for boxes outside the warranty or bought secondhand.

We want to get your Blockhütte gear to you as fast as possible. Most orders are processed within 1 business day. We route every order through USPS, FedEx, or UPS, whichever delivers fastest at the best rate.

Shipping Rates (Contiguous U.S.)
* Ground ($50+): FREE (2–5 Business Days)
* Ground (Under $50): $10 (2–5 Business Days)
* Expedited: $20 per 26 lbs (1–3 Business Days)
* Overnight: $65 per 26 lbs (1 Business Day)

Tip: Place Expedited or Overnight orders by 12:00 PM CT for the fastest processing.

Alaska, Hawaii & U.S. Territories
(American Samoa, Guam, Marshall Islands, Micronesia, Northern Mariana Islands, Palau, Puerto Rico, U.S. Virgin Islands)
* Ground: $20 flat (10–14 Business Days)
* Expedited: $40 flat (3–5 Business Days)
* Overnight: Not available

Important Notes
* Free Shipping: Contiguous U.S. only.
* Express Engraving: order by 1:00 PM PT and we engrave the same day.
* PO Boxes: Shipped via USPS at Ground rates.
* Heavy Orders: Items 1,000+ lbs may ship via LTL freight.
* Tracking: You'll receive a tracking number via email once your order ships.

International Orders? Check our International FAQ for details.

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This fits with it

Frequently bought together

Leak-proof for everyday food

You surely know how annoying it is to constantly clean your bag because the old lunch box has leaked again? We do too. That is why we widened the seal and reinforced it. Sauces, dressings and yogurt stay in the box, even when it travels sideways in a bag. Thick stews travel fine. Clear soup travels upright.

Man leaning on a chain-fence post by the water, holding a closed stainless steel lunch box in one hand

Extraordinarily Safe

Every lunch box is equipped with our unique & fully rolled safety edges. This ensures that you and your loved ones will not suffer any injuries. (ATTENTION! These edges are exclusive to Blockhuette.)

Person with a backpack sitting on a park bench, opening a stainless steel lunch box on their knees
Hands pressing a barcode shipping label onto a brown cardboard box on a wooden desk

Fast Shipping

Your order ships from within the US. Ground delivery takes 2 to 5 business days in the contiguous US.

Most orders are processed within one business day. Alaska, Hawaii and the US territories take 10 to 14 business days.

Every package goes out with USPS, FedEx or UPS, whichever gets it to you fastest.

Recyclable & Plastic-Free Packaging

Sustainability is a top priority for us! For packaging, we have opted for sustainable and recyclable cardboard. Even with the cardboard, we ensure that as little material as possible is used, to save resources.

Two brown cardboard Blockhütte lunch box packages lying on grass, front box marked 1200 ml
Person sitting by a canal with a stainless steel water bottle, open lunch box with apple, sandwich and cookie

Food-Safe & Taste-Neutral

Your food touches nothing but steel. The inside is uncoated 18/8 stainless steel: no coating, no aftertaste.

The seals are food-grade silicone, BPA-free. Which lab report covers which product is on our certificates page. Free to download, no form.

Two men in white Blockhütte T-shirts laughing in front of a painted green leaf mural

Through our extensive travels in the past, it became even more important to us, for environmental and cost reasons, to always have something to eat and drink on hand. We opted for stainless steel lunch boxes and water bottles. However, these products were of inferior quality: either they were made of cheap stainless steel, were not food-safe, or they leaked. This set our goal: to bring the best lunch box to the market in terms of sustainability, quality, and value for money.

Nils & Malte

Founders of Blockhuette

Why a stainless steel lunch box outlasts a plastic one

Steel does not stain, does not warp and does not keep the smell of last week's curry.

Your food touches uncoated 18/8 stainless steel and nothing else. No liner, no coating, no plastic.

Tested for lead under the US CPSIA, and we retest every year. The reports are on our certificates page.

How leak-proof is it, really?

Sauce, dressing and yogurt stay in the box, even sideways in a bag.

Thick stews travel fine on their side. Clear soup travels upright, and that is what the insulated food jar is for.

The seal does the work. When it wears out, you buy a seal, not a new box.

Cleaning and everyday care

Dishwasher, every part of it: box, lid, seal and dividers.

Take the seal out once a week so it dries fully. That is the only habit worth having.

The smooth steel surface gives bacteria nothing to hold on to. It does not crack or craze the way plastic does.

Which size for school, which for work

Three sizes. 27 oz for a smaller appetite or a younger child. 40 oz for school and most office days. 47 oz when lunch is the main meal.

Two removable dividers keep wet and dry apart. And with a name engraved on the lid, twenty bags on the same hook stop looking alike.