Bsc Preferred M643 Corrugated Mailers White 50 Pack

Product Description

The BSC PREFERRED M643 is a self-sealing corrugated mailer designed to protect small, lightweight fragile items during transit. Manufactured from 200/ECT-32-B white corrugated board, each mailer folds to create double walls of protection on the front and sides. No tape, glue, or staples are required for closure, which reduces packing time on the line. The lightweight construction helps keep shipment weight low, which can reduce carrier costs. Each pack contains 50 mailers. This SKU ships as a single pack with a package weight of approximately 7.44 pounds.

These corrugated mailers are suited for warehouse, fulfillment, and light industrial shipping operations. They work well for e-commerce picks, sample shipments, small parts, and any application where a rigid, self-contained mailer is preferred over a padded envelope or standard carton. The white exterior surface also provides a clean presentation for outbound shipments.

Key Features

• Manufactured from 200/ECT-32-B white corrugated board for crush resistance
• Fold-to-close design creates double walls on front and sides
• No tape, glue, or staples required for sealing
• Lightweight construction helps minimize shipment weight and postage
• Sold in packs of 50 mailers per unit of measure
• White exterior finish provides a clean, professional appearance

Compatibility

Designed as a direct equivalent to part number S-430. Suitable for general-purpose mailer applications involving small, lightweight fragile items.

Installation Notes

No tools are required to assemble or seal these mailers. Fold along the scored lines to form the double-wall enclosure before inserting the item. Ensure the contents fit within the interior dimensions without forcing the closure, which can compromise the seal integrity. Store flat in a dry environment to maintain board strength prior to use.