Best Gummed Clasp Mailing Envelopes in 2026

Reusable, double prong metal clasp is durable and designed for repeated use and eyelets are reinforced . Great for home, office, school, interoffice or mailing.

Perfect for everyday home and business use, clasp envelopes are made from heavyweight 28 lb. brown Kraft stock to give contents extra protection during mailing, storage and handling.

In addition to the clasp closure, these envelopes have a moisture activated seal with deep gumming on the flap to create a permanent seal.

Kraft Envelopes

Self-adhesive seal

Heavyweight

Heavyweight envelopes feature a clasp closure, in an Office Pak for larger quantity

9" x 12" size

Brown Kraft material

Clasp envelope (100-pack) for filing, storing, or mailing documents

Double-prong metal clasp closure and reinforced eyelet keep documents securely contained

Moisture-activated gummed surface on flap creates a permanent seal

9X12 CATALOG ENVELOPES; Aimoh’s White 9x12 Security Envelopes combine a professional security tint pattern, large size for business documents and premium quality for the best 9x12 envelopes on the market

SECURITY TINT PATTERN; ideal for secure business mailing and sensitive correspondence, each 9x12 envelope contains a super secure, security tint pattern to protect contents, information and data when mailing

FOR 8.5X11 DOCUMENTS; large 9x12 size and strong QUICK-SEAL closure security tinted envelopes, perfect for photos, catalogs, thicker, larger documents and other business mailings

Durable multi-purpose envelope; dual purpose seal allows for multiple uses; use the moisture activated gummed seal for mailing or the strong metal clasp for repeated use and storage purposes.

Extra heavy-duty opaque 32 lb. brown Kraft material provides privacy of contents

9 x 12 inches; 100 envelopes per box

9x12 KRAFT ENVELOPES; Aimoh’s Catalog Envelopes combine tough 28lb golden kraft paper stock, strong self-sealing SELF-SEAL Closure for the best catalog envelopes on the market, perfect for large documents and all business correspondence

DURABLE MULTI-PURPOSE; Ideal for mailing catalogues, magazines, documents, direct mail, promotional material, brochures and more, Aimoh’s Catalog Envelopes can be easily hand addressed or customized with business information

28LB STOCK; manufactured from tough, durable Construction like 28lb paper stock, the brown kraft material will insure privacy of the envelopes contents, the durable, woven paper extends the tampering resistance of this envelope, standing up to normal postal wear and tear without damage,

10x13 CLASP ENVELOPE SET – Pack of 15 Single Reusable Envelopes Serves a Variety of Small & Large Documents for Home, Office, Business, Legal & School

Made IN USA, HEAVY DUTY PAPER – Extra Strong, Durable 28LB Standard Brown Kraft Envelopes Proudly made right here in the United States Provides Confidential Protection & Exceptional Rip, Tear & Puncture Resistance - Thank you for supporting American manufacturing!

DOUBLE SEAL DESIGN – Offers Reliable Security for Personal & Professional Mailing; Sturdy Metal Dual Prong Clasps & Gummed Seals w/ Tough Adhesive Glue

HEAVYWEIGHT ENVELOPE SET : Box of 100 single envelopes accommodates variety of small & large documents for home, office, business, legal & more.

SUPER STRONG CONSTRUCTION : Standard brown kraft envelopes are crafted of heavy, durable 28lb paper for exceptional rip, tear & puncture resistance.

DOUBLE SEAL DESIGN : Provides dependable security for work & personal mailing; features reusable dual prong clasps & gummed seals w/ tough adhesive glue.

Package includes 18 brown kraft envelopes with gummed seal and metal prong clasp.

Mr. Pen clasp envelopes are made from high-quality brown kraft paper that won’t easily rip or tear during transportation.

Each kraft envelope measures 9 x 12 inches, perfect for mailing and storing Important paperwork.

Clasp - #105 - 11 1/2" Width x 14 1/2" Length - 28 lb - Clasp - Kraft - Brown Kraft - 10 Envelopes

Heavy-duty, 28 lb. Brown Kraft

Metal clasp with rounded edges is plated for rust-resistance

10x13 KRAFT ENVELOPES; Aimoh’s Catalog Envelopes combine tough 28lb golden kraft paper stock, strong self-sealing SELF-SEAL Closure for the best catalog envelopes on the market, perfect for large documents and all business correspondence

DURABLE MULTI-PURPOSE; Ideal for mailing catalogues, magazines, documents, direct mail, promotional material, brochures and more, Aimoh’s Catalog Envelopes can be easily hand addressed or customized with business information

28LB STOCK; manufactured from tough, durable Construction like 28lb paper stock, the brown kraft material will insure privacy of the envelopes contents, the durable, woven paper extends the tampering resistance of this envelope, standing up to normal postal wear and tear without damage,

250 PACKS KRAFT ENVELOPES - Package contents 250 PCS security catalog envelopes, perfect size 6x9 inches, printable Kraft envelopes allow you print shipping label or other custom label via your laser or inkjet printers, great for household, office, business, legal and more.

HIGH QUALITY MATERIAL - Reject the cheap quality paper! All our Security Catalog Envelopes are made of superior Kraft paper in 2X thicken improvement to offer a top quality, which features exceptional rip, tear and puncture resistance, made to last.

SELF SEAL SECURITY CATALOG ENVELOPES - No glue and water required, no need to lick the envelopes to seal. The envelopes are with self seal design to offer a strong and convenient sealing experience for you, keep the inner documents safe all the time.

Columbian Envelopes 6" X 9" Catalog envelopes are a safe, secure choice for smaller mailings

28 lb. White wove envelopes provide privacy, protection and durability; The perfect heavyweight stock for everyday business use

Top-loading envelopes make it easy to drop in flyers or other enclosures; ideal for flat rate mailings

Brite Hue Ultra Lime Green Paper Envelopes with Clasp Closure

Size: Open End Catalog (6 x 9 inches)

Quantity: 100 Envelopes per Box

Office Supplies

Ideal for storing or sending important paper work

A great organizational method for school, home or work setting

A must have for school administrators, lawyers and HR representatives

Made in USA.

Plain white envelopes

Moist and seal closure

Easily send or store receipts, letters, documents, magazines and more with our durable 10” x 13” clasp envelopes made from 28lb kraft paper

10” x 13” size means oversized papers, magazines, or other items that are larger than letter size can fit inside without being folded.

With a metal clasp and gummed seal on the envelope flap, your contents will stay secure whether you’re mailing them, or keeping them safe in a file.

Adequate supplies: 50 pieces clasp envelopes with flaps are available in 4 different sizes, you will get 26 pieces envelopes of 5 x 7 inch, 14 pieces envelopes of 6 x 9 inch, 8 pieces envelopes of 9 x 12 inch, 2 pieces envelopes of 10 x 13 inch, different sizes can hold various files in different sizes

Essential tools: the brown kraft catalog clasp envelopes are the practical stationery that most offices would need; Designed to provide extra protection for items during mailing, storage and handling, it is very suitable for daily household and business use

Quality material: the brown kraft catalog clasp envelopes with clasp seal are made of quality kraft material, safe and durable to use with a durable metal clasp and a reinforced eyelet on the open end, so you won't worry about the content suddenly falling out

Clasp - #35 - 5" Width x 7 1/2" Length - 28 lb - Clasp - Kraft - 10 / Pack - Brown Kraft

Heavy-duty, 28 lb. Brown Kraft

Metal clasp with rounded edges is plated for rust-resistance

Envelopes are perfect for sending contents you can't or shouldn't fold such as photographs and DVDs

Comes in brown and made of kraft

Dimensions: 6"L x 9"H; size #6.5

High Quality — 250gsm heavy manilla paper, 10pcs, great thickness and made by hand.

Elegant & Classic — 6 x 6 inches mini tiny square brown vintage envelopes with string tie closure, you can use them over and over again

Multiple Uses — Great for invitations, greeting cards, business meeting and decoration, seed packets, gift card sleeves, coin.

High-quality material: The Keketer Gradient Color #10 Envelope is made from premium quality materials, ensuring durability and long-lasting use. The sturdy material protects the contents of the envelope from wear and tear during transit, making it ideal for mailing important documents or letters.

Unique gradient color: The envelope features a beautiful gradient color design that is eye-catching and attractive. The unique color gradient adds a touch of elegance and sophistication to any mailing, making it perfect for special occasions like weddings, birthdays, or other important events.

Versatile use: The Keketer Gradient Color #10 Envelope is suitable for a wide range of applications, including mailing letters, invitations, greeting cards, and other important documents. It is compatible with most standard printers and can be easily customized to include logos, addresses, or other branding elements.

Size: 9" x 12"

4 count

Heavyweight envelopes with clasp closing

Sold as 100/Box.

Catalog envelopes are a convenient and reliable choice for personal and business mailing purposes. Comes in brown and made of kraft. Dimensions: 12"L x 15.5"H; size #15.5. Clasp & moistenable glue for secured sealing. Envelopes come in boxes of 100, making them an easy and economical choice.

Metal Clasp With Rounded Edges Is Plated For Rust-Resistance.

Open-End Style Construction With Superior Gumming On Flap For A Secure Seal.

28 Lb. Brown Kraft Stock To Give Contents Extra Protection During Mailing, Storage And Handling.

Adequate quantity and suitable size: 100 pieces clasp envelopes with flaps are available in 3 different sizes; 50 Pieces envelopes of 5 x 7 inch, 30 pieces envelopes of 6 x 9 inch, 20 pieces envelopes of 9 x 12 inch, various sizes for you to choose, and sufficient quantity can meet your usage

Essential tools: these kraft catalog clasp envelopes are practical stationery needed in most offices; Designed to provide extra protection for items in the process of mailing, storage and handling, they are suitable for daily household and commercial usage

Quality material: featuring quality kraft material, these catalog envelopes with clasp seal are safe and reliable to use; Adopting a quality metal clasp and a reinforced eyelet on the open end, these envelopes will not let the content falling out easily

Assembly Required: No, Color: Brown, Mailer/Envelope Size: #97, 10" Width x 13" Length, Mailer/Envelope Size: #97, Material: Kraft

Features: Heavyweight

Sold as 1 pack

Clasp - #90 - 9" Width x 12" Length - 28 lb - Clasp - Wove - 10 / Pack - White

Gummed flap creates permanent closure to prevent peeling during transit

Double-prong clasp allows convenient interdepartmental use