9x12 Kraft Self-Seal Envelopes 500/Case EN1060
$168.57
/ case of 500$0.34 per mailer
Request bulk pricing
Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
9" × 12"
Board / material
28 lb. Paper Stock
Color
Kraft
Freight class
Class 78
Specifications
| Inside dimensions | 9" × 12" (L × W) |
|---|---|
| Board / material | 28 lb. Paper Stock |
| Color | Kraft |
| Sold as | Case of 500 |
| Order in multiples of | 1 |
| Case weight | 20.86 lb |
| Outer carton (shipping) | 15.75 × 12.75 × 9.5 in |
| LTL freight class | Class 78 |
| SKU | EN1060 |
About this item
SKU EN1060 — 9" × 12", 28 lb. Paper Stock, Kraft. Sold as a case of 500, shipped from US warehouses.
9x12" kraft self-seal envelopes in paper stock, packed 500 per case (SKU EN1060); this is a second listing of the same BOX case stock at the same price.
Sized for shipping and fulfillment work; the self-seal closure needs no tape. Order by the case of 500.
Common questions
How long does the adhesive stay effective if envelopes are stored?
The protective tear strip keeps the self-seal adhesive dust-free and protected, ensuring consistent performance throughout the entire case lifespan, even with extended storage.
Are these envelopes compliant with USPS and UPS shipping standards?
Yes. The 9 x 12" dimensions and 28 lb. kraft paper meet standard commercial mailing specifications for both USPS First-Class and UPS flat-rate shipping.
Do I need water or a moisture applicator to seal these envelopes?
No. Simply peel off the tear strip and press to seal instantly. This eliminates moisture application, speeds up processing, and eliminates humidity-related sealing failures.
What makes 28 lb. paper stock better than lighter alternatives?
28 lb. kraft paper provides puncture and tear resistance, protecting contents during transit and handling while maintaining cost efficiency compared to heavier envelope stocks.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.