Best Clasp Mailing Envelopes of 2025
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Clasp mailing envelopes are a popular choice for businesses and individuals who want to ensure that their documents and packages arrive at their destination safely and securely. These envelopes are made from durable materials that are designed to withstand the rigors of transport and handling. They feature a clasp closure that keeps the contents of the envelope from falling out during transit. Additionally, these envelopes often have reinforced edges and corners that help prevent tearing and damage. Clasp mailing envelopes come in a variety of sizes and styles, making them a versatile option for a wide range of mailing needs.
At a Glance: Our Top Picks
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9.9
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9.8
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9.6
Top 10 Clasp Mailing Envelopes
Amazon Basics Catalog Mailing Envelopes, 100-Pack
Amazon Basics Catalog Mailing Envelopes are made of 28-pound white woven paper, ensuring durability and strength. Each envelope measures 9 by 12 inches and features an easy-to-seal Peel and Seal closure that doesn't require moisture. These envelopes are perfect for mailing catalogs, booklets, brochures, and multi-page documents.
Quality Park Clasp Envelopes with Gummed Flaps, 100 per Box
The Quality Park Clasp Envelopes are made of durable 28 lb Brown Kraft stock, which can protect your documents, photos or records during mailing, storage and handling. With a moisture activated seal and a double prong metal clasp, these envelopes are perfect for home, office, school, interoffice or mailing. The deep gumming on the flap creates a permanent seal, ensuring the safety of your documents. Additionally, these envelopes are convenient for organizing and storing, and are packed in large counts to reduce the frequency of purchasing.
Mead Clasp Mailing Envelopes
The Mead Clasp Mailing Envelopes are perfect for mailing important documents, letters, and more. These envelopes are made of brown kraft material and are sold in a pack of 20. With a clasp closure, these envelopes will keep your documents secure while in transit. The envelopes are 9" x 12" in size, making them perfect for letter-sized documents. These envelopes are heavyweight and made in the United States.
Amazon Basics 10 x 13-Inch Clasp Kraft Envelopes, 100-Pack
The Amazon Basics Clasp Kraft Envelopes are a pack of 100 envelopes designed for filing, storing, or mailing important documents. Each envelope is made of thick 28-pound kraft paper, which provides reliable strength and protection. The double-prong metal clasp closure and reinforced eyelet keep your documents securely contained. The moisture-activated gummed surface on the flap creates a permanent seal to ensure your documents stay safe.
Quality Park Clasp Envelopes, 100 per Box
Quality Park Clasp Envelopes are the ideal solution for your mailing and storage needs. With a gummed flap and reusable clasp, these envelopes are perfect for keeping your documents safe and secure. The heavy 28 lb Kraft paper provides durability and opacity to protect your private contents. The double prong metal clasps with reinforced eyelets make it easy to access your files as needed. These small envelopes are perfect for organizing the office or sending 6 x 8 greeting cards or invites.
Quality Park Clasp Envelopes
Quality Park Clasp Envelopes are a must-have for your mailing needs. These envelopes feature a gummed flap closure with double prong metal clasps and reinforced eyelets, making them reusable and durable. The heavily gummed flaps ensure a secure seal, keeping your documents safe during transit. With these envelopes, you can easily organize and store important papers, whether it's for business or personal use. The Quality Park Clasp Envelopes are perfect for mailing important documents, contracts, invoices, and more. They provide convenience and peace of mind, knowing that your documents are well-protected. With their high-quality construction and reliable closure, these envelopes are a reliable choice for all your mailing needs.
Quality Park 6" x 9" Clasp Envelopes
Quality Park Clasp Envelopes are designed for repeated use and offer reliable protection for your mailed items. Made from heavyweight 28-lb stock, these envelopes are durable and provide extra protection during mailing, storage, and handling. The double prong metal clasp and reinforced eyelets ensure the envelopes stay securely closed. The moisture activated secure seal with deep gumming on the flap creates a permanent seal, giving you peace of mind that your contents are safe. With their reusable design, these envelopes allow you to save money by reducing the need for purchasing new ones. The heavyweight brown kraft stock further enhances the protection of your contents. Choose Quality Park Clasp Envelopes for reliable and secure mailing.
Columbian 10 x 13 Clasp Envelopes
The Columbian Clasp Envelopes are designed for mailing large documents, catalogs, or photos with ease. Made from durable 28 lb kraft paper, these envelopes ensure your items remain secure during transit. The gummed closure provides a strong, permanent seal, while the metal clasp allows you to easily access or add items whenever needed. This top-loading design simplifies the process of inserting flyers or other documents, making it perfect for busy individuals at home, work, or school. With 30 envelopes per pack, you’ll have plenty on hand for all your mailing and storage needs.
Quality Park Clasp Envelopes, 100/Box (QUA37897)
Quality Park Clasp Envelopes are ideal for mailing and storage, with durable metal clasps and reinforced eyelets. The envelopes have a deeply gummed flap with moisture-activated adhesive to create a secure seal, and are made of heavyweight 28 lb kraft paper to protect private contents. They are an economical way to send manuscripts, certificates, or mail flat documents.
Quality Park Clasp Envelopes
Quality Park Clasp Envelopes, also known as Quality Park Envelopes, are a reliable choice for all your mailing needs. Made from 28 lb. Kraft paper, these envelopes feature a deep gummed flap for secure closure. The reinforced clasp design with double prong metal clasps and reinforced eyelets ensures that your documents stay in place during transit. With a size of 6-1/2" x 9-1/2", these envelopes are perfect for sending important letters, documents, or forms. The gummed flap closure and heavily gummed flaps make these envelopes reusable. Whether you're sending personal or professional mail, Quality Park Clasp Envelopes provide durability and convenience.
Frequently Asked Questions (FAQs)
1. Can you mail an envelope with a clasp?
Yes, you can mail an envelope with a clasp, but there are specific requirements from the USPS. The clasp must be fully fastened, and the envelope must be securely sealed. It should be rectangular and not exceed the maximum size specified by USPS.
2. What size is a clasp envelope?
Clasp envelopes come in various sizes, including options like 4 1/2x10 3/8, 5 1/2x7 1/2, 6x9, 6 1/2x9 1/2, 9x12, 10x13, 7 1/2x10 1/2, 7x10, and 12x15 1/2. These envelopes are available in different colors like white, brown kraft, pool, sunflower, and holiday green.
3. How do you stamp a clasp envelope?
To stamp a clasp envelope, first, push the clasp arms outward and flatten them against the flap. Then, to prevent the clasp from catching on other mail, place a piece of tape over the arms. Finally, apply the appropriate postage in the upper right-hand corner of the envelope.
4. How many stamps do I need to mail a clasp envelope?
The number of stamps required to mail a clasp envelope depends on its size and weight. For standard-sized envelopes weighing 3.5 ounces or less, one stamp is sufficient. However, for larger envelopes like 9x12, legal, or manila envelopes, two stamps are needed for the first ounce, with an additional $0.20 cents for every extra ounce.
5. What is the most secure way to mail an envelope?
The most secure way to mail an envelope is through Registered Mail™ offered by the USPS. Registered Mail provides added protection for valuable mail. Only matter prepaid with First-Class Mail rates can be registered, and insurance coverage ranging from a declared value can be added.
6. Does it cost more to mail an envelope with a clasp?
Yes, clasp envelopes require extra postage. To avoid this additional cost, it is recommended to seal the envelope without using the clasp and tape over it.
During our clasp mailing envelope research, we found 27 clasp mailing envelope products and shortlisted 10 quality products. We collected and analyzed 207,662 customer reviews through our big data system to write the clasp mailing envelopes list. We found that most customers choose clasp mailing envelopes with an average price of $17.46.
The clasp mailing envelopes are available for purchase. We have researched hundreds of brands and picked the top brands of clasp mailing envelopes, including Quality Park, Mead, Columbian. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.
Rebecca Cantu grew up in a family-owned retail store for home and kitchen products. She worked online and gave assistance to people to buy ideal products for their sweet home after graduating from Northwestern University with a marketing degree. She has been writing content for online shopping guides since 2011 with her professional knowledge and natural sensitivity of appliances.
Clasp Mailing Envelopes Comparison Table
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| Brand | Amazon Basics | Quality Park | Mead | Amazon Basics | Quality Park | Quality Park | Quality Park | Columbian | Quality Park | Quality Park |
| Color | White | Light Brown | Brown | Kraft | Kraft | Brown Kraft | Light Brown | White | Kraft | Kraft |
| Material | Paper | - | Paper | Paper | Cardboard | Paper | Paper | Paper | Cardboard | Paper |
| Closure Type | - | Gummed | Clasp | Gummed | Gummed, Clasp | Gummed, Clasp | Gummed | Gummed | Gummed, Clasp | Clasp |
| FTB Score |
9.9
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9.8
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9.6
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9.6
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9.6
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9.6
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9.5
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9.4
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9.4
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9.2
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| Where to Buy |