Bsc Preferred M433K Kraft Corrugated Mailers Pack of 50

Product Description

The BSC PREFERRED M433K is a pack of 50 kraft corrugated mailers built for shipping small, lightweight fragile items while keeping postage costs low. Manufactured from 200/ECT-32-B kraft corrugated board, these mailers fold to create double walls of protection on the front and sides. No tape, glue, or staples are required to close them. Each pack contains 50 mailers and weighs approximately 5.12 pounds, making them a practical bulk option for shipping departments, warehouse teams, and fulfillment operations that move small goods regularly.

These mailers are suited for light-duty protective packaging in commercial and industrial shipping environments. The self-closing, fold-lock design speeds up packing workflows and reduces the need for additional sealing supplies. They are commonly used in mailrooms, distribution centers, and trade supply operations where fast, consistent packaging of small components or parts is a daily requirement. The corrugated construction provides crush resistance during transit without adding significant weight to the shipment.

Key Features

• Manufactured from 200/ECT-32-B kraft corrugated board for consistent strength and crush resistance
• Fold-lock design creates double walls on front and sides for added protection
• No tape, glue, or staples required for closure
• Lightweight construction helps minimize postage and shipping costs
• Sold in a pack of 50 mailers for bulk workflow efficiency

Compatibility

Designed as a general-purpose corrugated mailer for shipping small, lightweight fragile items. This product is equivalent to part number S-20501.

Installation Notes

No tools or fasteners are required to use these mailers. Fold along the pre-scored lines to engage the double-wall protection on the front and sides before inserting the item. Ensure the item fits within the interior dimensions without forcing the closure, which could compromise the fold-lock seal. Store unused mailers flat in a dry location to maintain board integrity.