6 3/8 x 4 in 28 lb Kraft Clasp Envelopes Reusable 1000/Case EN1014
$387.61
/ case of 1000$0.39 per mailer
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Ships from the nearest of 5 US warehouses · freight calculated at checkout
30-day returns on stock items · Return policy
Inside dimensions
6 3/8" × 6 3/8"
Board / material
28 lb. Woven Paper
Color
Kraft
Freight class
Class 78
Specifications
| Inside dimensions | 6 3/8" × 6 3/8" (L × W) |
|---|---|
| Board / material | 28 lb. Woven Paper |
| Color | Kraft |
| Sold as | Case of 1000 |
| Order in multiples of | 1 |
| Case weight | 12.44 lb |
| Outer carton (shipping) | 20.5 × 9.75 × 9.5 in |
| LTL freight class | Class 78 |
| SKU | EN1014 |
About this item
SKU EN1014 — 6 3/8" × 6 3/8", 28 lb. Woven Paper, Kraft. Sold as a case of 1000, shipped from US warehouses.
6 3/8 x 4" kraft envelopes in paper stock, packed 1000 per case (SKU EN1014); this is a second listing of the same BOX case stock at the same price.
Sized for shipping and fulfillment work; closes with tape or the built-in flap. Order by the case of 1000.
Common questions
Can these envelopes be reused?
Yes. The reinforced metal clasps are designed for repeated opening and closing, making these envelopes cost-effective for internal routing, document circulation, and multi-recipient distributions. The durability of 28 lb. woven paper withstands multiple-use cycles.
What is the best way to seal these envelopes permanently?
Moisten the gummed flap and press closed firmly. This creates a secure, tamper-evident seal suitable for external mailings and shipping-compliant applications. The clasp may be used for temporary closure or in combination with the gummed flap.
Are these envelopes suitable for USPS, UPS, or FedEx shipping?
Yes. These 6 3/8" x 4" kraft envelopes meet standard carrier dimension and weight requirements for First-Class Mail, Priority Mail, and parcel services. The 28 lb. woven paper provides adequate protection for documents and lightweight items.
Why choose kraft clasp envelopes over standard adhesive mailers?
Kraft clasp envelopes offer three key advantages: reusability (reducing per-use cost), no tape waste, and professional appearance for business correspondence. They eliminate adhesive failure issues and provide a more sustainable alternative to plastic-lined mailers.
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Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.