Ideal for mailrooms, administrative departments, and organizations that handle recurring correspondence and need cost-effective reusable mailing solutions. The 9 1/2" x 12 1/2" size accommodates standard documents, forms, and catalogs while the reinforced metal clasps and 28 lb. woven kraft paper deliver durability for repeated use and inter-office distribution.
Best For
How to Choose the Right Packaging
Specs at a Glance
| Material | 28 lb. Woven Kraft Paper |
| Dimensions | 9 1/2" x 12 1/2" |
| Closure Type | Reinforced Metal Clasp with Gummed Flap |
| Unit Quantity | Case of 500 Envelopes |
| Recyclable | Yes |
Common Use Cases
- Inter-office mail and document distribution systems Recurring billing and invoice distribution programs Catalog and brochure mailing campaigns Secure document return envelopes and collection systems Mailroom organizational filing and archival storage
What You'll Receive
- 500 kraft clasp envelopes per case Pre-installed reinforced metal clasps on each envelope
Shipping & Packaging
Frequently Bought Together
Bundle & Save 5%Frequently Asked Questions
Yes. The reinforced metal clasps are specifically engineered for repeated use, and the 28 lb. woven kraft paper resists tearing and deterioration. Each envelope can be reused multiple times, making this a cost-effective long-term solution for inter-office mail and recurring document distribution.
The gummed flap, when moistened and pressed firmly, creates a permanent seal that meets standard mailroom and shipping compliance requirements. Once sealed, it provides tamper-evident closure suitable for sensitive documents, invoices, and regulated correspondence.
This size accommodates standard 8.5" x 11" documents, forms, catalogs, brochures, and folded materials. It is ideal for standard business correspondence and is slightly larger than a traditional #10 envelope, providing flexibility for multiple document formats.
Yes. Orders of multiple cases qualify for volume pricing and freight discounts. Contact our sales team for custom quotations based on your monthly or annual envelope requirements.
Technical Specifications
| Material | 28 lb. Woven Kraft Paper |
| Dimensions | 9 1/2" x 12 1/2" |
| Closure Type | Reinforced Metal Clasp with Gummed Flap |
| Unit Quantity | Case of 500 Envelopes |
| Recyclable | Yes |
| Color | Kraft |
| Strength / Material | 28 lb. Woven Paper |
| Dimensions (Internal) | 9 1/2"" × 12 1/2"" (L × W × H) |
Product Downloads
Shipping Information
Outer Carton Dimensions
19.0" × 15.5" × 10.5" (L × W × D)
Unit of Measure
CASE
Qty Per Shipping Unit
500 PER CASE
LTL Freight Class
Class 78
Carrier Eligibility
UPS Ground & Freight Eligible
TRUST & RELIABILITY
Product Support
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Buyer guides
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