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The BSC PREFERRED MFL12126K is a corrugated document mailer box sold in a pack of 50 units. Built from 200/ECT-32-B kraft corrugated material, it provides rigid protection for flat documents, contracts, blueprints, and similar materials during shipping and handling. The design includes protective side flaps and a front outside tuck closure that locks the contents securely without requiring tape, glue, or staples. Each box assembles in seconds, making it practical for high-volume packing operations. This mailer is suited for mailrooms, fulfillment centers, print shops, and any operation that regularly ships flat or document-format materials.
The MFL12126K is intended for mailing and shipping flat documents that require rigid protection against bending and crushing. The 200/ECT-32-B corrugated construction meets standard edge-crush test requirements for light-to-medium-duty shipping applications. The self-locking tuck closure speeds up packing workflows and eliminates the need for additional sealing supplies. Each pack contains 50 mailer boxes, making it a practical bulk-buy unit for steady-volume shipping operations in office, warehouse, or distribution environments.
Designed as a standard corrugated document mailer suitable for flat documents, contracts, and similar materials shipped via standard parcel carriers. This product is equivalent to part number S-16934.
No tools required for assembly. Fold along pre-scored lines and engage the tuck closure before loading contents. Store flat in a dry environment prior to use to maintain structural integrity. Handle assembled mailers with care to avoid compromising the tuck closure during loading.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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