Self Locking Mailers

Custom Locking Mailers are ideal for shipping purposes. These boxes are made self-locking by creating an extra tab lock as an additional security measure. CustomBoxestogo produces tab lock mailing boxes according to the client’s requirement. We use a high-quality corrugated stock that will ensure safe transport of the product.

Product Specification
Box Style Self Locking Mailers
Dimension Custom sizes and shapes
Quantity 100-250,000 boxes
Paper Stock (12pt to 24pt) Cardstock, Kraft, Cardboard, Bux Board
Printing CMYK, PMS
Coating Matte, Gloss
Finishing Embossing, Debossing, Foil Stamping, Spot UV
Included Options Die Cutting, Scoring, Gluing, Fold & Perforation
Proof Electronic Proof (flat, 3D mock-up), Hardcopy Proofing (upon request)
Turnaround 6-8 Business Days, Rush Option
Shipping FLAT via Courier
SKU: 62609 Category:

Custom Self Locking Mailers

Custom self-locking envelopes are easy to assemble because they do not require tape, glue or staples. These boxes can generally be used for transportation purposes; heavy objects can be placed in it without worrying about damage. They can also store fragile and delicate products. Our custom interlocking envelopes provide the required strength and control of merchandise during shipping and handling.

Choose the best stock

When it comes to the delivery of protected products, corrugated material is the biggest choice; corrugated paper is part of the rigid family which adds more security to its contents. We create custom self-locking envelopes using heavy A, B, C, D and F Flute corrugated paper; it depends on the weight required by the consumer. Let us know how much weight you want to put inside, and we will suggest the correct thickness of corrugated material for you. At CustomBoxestogo, we manufacture these boxes professionally. We provide you with personalized lockable mailers and self-locking PO boxes according to the needs of our customers. Alternatively you can email us at we always good conception ripe bright to you and pay attending to your personalized needs. We offer free shipping to the United States. Our state-of-the-art printing facility performs custom printing on them, enabling printing of logo, key features and other product details. We only focus on high quality self-locking shipping products. We develop and maintain a wide range of envelopes, mails, boxes, lockable mailboxes and cartons at very competitive prices. Our main goal is to reduce your packaging costs and improve your performance.

Are you looking for PO boxes? Contact us now!

If you need to discuss packaging ideas, call  and speak to our customer service. An online chat option is available on our site to communicate your packaging plans. Alternatively you can email us at we always welcome you and pay attention to your personalized needs. We offer free shipping to the United States. Our turnaround time is 6-8 business days. We can also handle urgent orders, the provisional deadline for urgent deliveries is 7-8 working days subject to proof approval.


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