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The BUSINESS SOURCE BSN36664 is a heavy-duty brown kraft clasp envelope designed for secure document storage and transport. Made from 28 lb kraft paper, this open-end envelope measures 9.5 x 12.5 inches and accommodates standard letter-size documents, reports, and folded materials. The reinforced metal clasps are rust-resistant with rounded edges, and deep gumming on the large flap provides a reliable secondary seal. Licensed trades, office professionals, and facilities teams use these envelopes for inter-office routing, filing, and job-site document transfer. Sold in a box of 100 units.
These envelopes are suited for both office and light industrial environments where secure, reusable document containment is needed. The open-end configuration allows easy insertion of full-size letter documents without folding. The combination of metal clasp closure and gummed flap makes them appropriate for mailing or internal routing where documents must stay protected from shifting or accidental opening during handling.
Designed as a standard open-end clasp envelope fitting letter-size and similar flat documents up to 9.5 x 12.5 inches in dimension.
No tools are required for use. To seal, insert documents, fold the metal clasp prongs through the reinforcing grommet and bend flat, then moisten and press the gummed flap for a secondary closure. Store unused envelopes flat in a cool, dry location to preserve the gum adhesive and prevent moisture activation.
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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