Top 10 Security Envelopes Self Seal – Business Mailing Envelopes

As an Amazon Associate I earn from qualifying purchases.

1. Aimoh

#ad

#10 Security Tinted Self-Seal Envelopes, EnveGuard, Size 4-1/8 X 9-1/2 Inches, 100 Count 34100, 24 LB, White, No Window

#ad
Aimoh #ad - Laser and inkjet printer compatible; premium construction measuring 4-1/8 x 9-1/2 inches, fully compatible with most inkjet and laser printers for quick and easy addressing! Click the Orange Button to order now. Super security tint pattern; #10 envelopes designed with a secure, security tint-pattern to protect contents and sensitive information, perfect for ultra-secure mailing.

100 envelope pack; these envelopes are manufactured with a window-less front panel for the perfect choice for small businesses, home offices and everyday use, #10 Security Envelopes are provided in a 100-envelope pack. Enveguard technology; in today's world where our health, at aimoh we approve only the highest quality products, privacy and security is so much threatened, the team of engineers and developers at Aimoh have researched and developed the EnveGuard Technology and Approval systems, produced from the best and safest material on earth.

Quick-seal closure; our #10 envelopes are designed with an ultra strong self-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing for any letter sized and larger documents without splitting.
BrandAimoh #ad
ManufacturerAimoh #ad
Height2.2 Inches
Length9.7 Inches
Width4.3 Inches
Part Number34100
Model34100

2. Aimoh

#ad

24 LB, EnveGuard, Ultra Strong Quick-Seal Closure, 500 Count 34010, Premium Security Tint Pattern, #10 Security Self-Seal Envelopes, Windowless Design, White, Size 4-1/8 x 9-1/2 Inches

#ad
Aimoh #ad - 10 security tinted self seal envelopes; forget cheap envelopes that easily split and aren't suitable for secure mailing, our #10 envelopes are designed with a premium security tint to protect sensitive information and a super strong SELF-SEAL strip, perfect for larger documents.

Long lasting supply; large sized envelopes and 500 envelopes in every pack for a long lasting supply, perfect for everyday business correspondence and large mailing tasks! Click the Orange Button to order now. Premium security tinted pattern; our #10 envelopes are designed with a premium security printed design to protect contents and sensitive information, perfect for secure business and legal mailing while protecting sensitive information. Quick-seal closure; our #10 envelopes are designed with an ultra strong SELF-SEAL adhesive strip to create a full, super secure seal across each envelope's width that won't easily open or tear, ideal for mailing larger documents without splitting.

Windowless design; envelopes ideal for standard business & legal documents and sensitive correspondence, manufactured with a windowless front panel for easy printing, perfect for quick, labeling or hand-addressing, mass business mailings.
BrandAimoh #ad
ManufacturerAimoh #ad
Height4.25 Inches
Length11.5 Inches
Width10 Inches
Part Number34010-500
Model34010-500

3. Quality Park

#ad

Security Tint and Pattern, 4-1/8" x 9-1/2", 100/Box QUA69117, 24-lb White Wove, Redi-Strip Closure, Quality Park #10 Self-Seal Security Envelopes

#ad
Quality Park #ad - Save time with self-stick: quality park #10 Security Envelopes have a strong peel & stick closure that helps you fly through mailings in record time.

Enhanced security: offer the protection clients deserve; a security tint makes envelopes hard to see through; a security pattern scrambles the appearance of text. Store more, longer: reid-strip envelopes have a longer shelf-life thanks to the peel able strip that protects your adhesive from dust. An excellent value: bright white 24-lb paper makes an impression for business mailings and personal correspondence; get 100 4-1/8 x 9-1/2 inch envelopes. Less yuck: we promise you won't miss licking envelopes or crumbly, drippy sponges; complete your mailings, no accessories required.
BrandQuality Park #ad
ManufacturerQuality Park #ad
Height2.03 Inches
Length9.63 Inches
Weight0.91 Pounds
Width4.25 Inches
Part NumberQUA69117
ModelQUA69117

4. Ohuhu

#ad

4-1/8 x 9-1/2 Inches, Statements & Legal Document, Ohuhu 500#10 Envelopes SELF SEAL Business Envelope Windowless Design, Invoices, Security Tint Pattern for Secure Mailing

#ad
Ohuhu #ad - With a easy peel-off strip that reveals a strong, permanent adhesive that won’t rip or tear even through long haul journeys. Premium quality: these business envelopes are made with thick 24lb.

Best value: each box comes with 500 self-seal envelopes, which fit standard-sized checks perfectly. Long lasting 500 envelope supply in every box, 4-1/8 x 9-1/2: Ideal for standard business & legal documents, perfect for everyday use. Windowless, security tinted envelopes: These mailing envelopes feature high quality security patterns with heavy paper stock to protect confidential information, for absolute peace of mind when mailing sensitive information.

6. Standard #10 envelopes, perfect for quick, mass business mailings. Paper, a super adhesive seal and a high-quality security pattern to ensure contents are kept in tip-top condition, with absolutely no security compromises. Quick seal adhesive: no glue sticks required.
BrandOhuhu #ad
ManufacturerOhuhu #ad
Height3.9 Inches
Length10.8 Inches
Weight6.7 Pounds
Width9.3 Inches
Part NumberY44-82000-02
Model#10
WarrantyOhuhu

5. Amazon Basics

#ad

AmazonBasics #10 Security-Tinted Envelopes with Peel & Seal, White, 500-Pack

#ad
Amazon Basics #ad - Interior security tint keeps content private. 500-pack of #10 security envelopes with Peel & Seal closure—no moisture needed. Measures 4-1/8 by 9-1/2 inches each. Ideal for home or office; securely send checks, invoices, or other confidential documents. 24-pound white woven paper for quality and strength.
BrandAmazon Basics #ad
ManufacturerAmazonBasics #ad
Part NumberAMZP5
ModelAMZP5

6. Blue Summit Supplies

#ad

4 1/8 x 9 1/2-500 Count, Security Tint, Blue Summit Supplies 500 Number 10 Envelopes Self Seal, Number 10 Business Envelopes Letter Size, Flip and Seal Flap

#ad
Blue Summit Supplies #ad - Save time with easy to use flip and seal self-seal design; With no need for licking or moistening, our self seal design allows for sending hundreds of invoices quickly and easily and is guaranteed to stay sealed with no need for tape or glue sticks.

Quickly stuff multiple pieces of business mail into our wide opening #10 security envelope design with large flip-and-seal opening. Provides complete mail security with no need to worry about others seeing your documents, thanks to our dark black security tint lining which completely hides your confidential mail. Create a professional look for your mail all the way to its destination thanks to our durable 24 white wove paper and smooth front envelope with no windows.

Smaller #9 or #8 return envelopes will easily fit inside so you can get your invoices paid quicker. Designed for secure everyday home and business mailings, our windowless number 10 security envelopes are a perfect fit for standard 8. 5'' x 11'' paper sizes and other folded letter or legal size documents.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Part NumberBSS-92588-033

7. Blue Summit Supplies

#ad

500 No. 10 Self Seal Single Window Security Envelopes -Designed for QuickBooks Invoices and Business Statements, Number 10 Size 4 1/8 X 9 1/2, Computer Printed Checks with Strong Peel and Seal Flap

#ad
Blue Summit Supplies #ad - Provides complete business mail security: your professional business mail will be completely hidden with our dark security tint design. Your business mail recipient address will show through the single window and you can quickly print your return address or add return address labels.

Just peel and seal for a strong lasting seal. Perfect for mailing invoices, checks, billing statements, QuickBooks Invoices and checks, and other business mail. Create professional looking mail with the added security of a single window envelope. You can even stuff smaller #9 or #8 return envelopes to get your invoices paid quicker. Our security envelopes will quickly and easily create a strong seal for completely secure business mail. Save time quickly stuffing multiple pieces of business mail in our wide and large #10 Security Envelope Design.
BrandBlue Summit Supplies #ad
ManufacturerBlue Summit Supplies #ad
Weight0.01 Pounds
Part NumberBSS-92588-004

8. Aimoh

#ad

For Business Checks, Size 3 5/8 x 8 11/16 Inches, Not for Invoices, 500 Count30180, QuickBooks & Quicken Checks, 500#8 Double Window Self Seal Security Envelopes, Checks Fit Perfectly

#ad
Aimoh #ad - Quick-seal self seal strip: aimoh’s double window Security Tinted Self Seal Check Envelopes uses a premium adhesive peel and seal designed strip to create a strong, secure self-sealing seal. Premium security tint check envelopes: Ultra Secure security tint pattern - Double Window Security Tinted Check Envelopes.

Five hundred count: each box contains a long lasting Five Hundred envelope supply, ideal for business and home office use. Dual window custom designed for mailing business checks: top window height is 7/8 inch x 3-1/2 inches wide and is positioned 3/8 inch from the left and 2-3/8 inch from the bottom, Bottom Window height is 7/8 inch X 3-1/2 inch wide and is positioned 7/8 inches from the left and 3/4 inches from the bottom.

Perfect secure design: measures perfectly 3 5/8 inch x 8 11/16 inch to prevent checks from sliding and moving unlike others on the market, securing sensitive information to remain hidden even through the two windows.
BrandAimoh #ad
ManufacturerAimoh #ad
Part Number30180

9. ValBox

#ad

ValBox 500 Count #10 Security Self-Seal Envelopes Windowless Design Security Tint Pattern for Secure Mailing 4-1/8x9-1/2" ,White Business Envelopes

#ad
ValBox #ad - Money back guarantee: we are confident you would love our valbox products in its quality and price. However, if there's anything make you unhappy or unsatifaction, please do contact us without any hesitation. With a easy peel-off strip that reveals a strong, permanent adhesive that won’t rip or tear even through long haul journeys.

A replacement or 100% refund will be immediately provided to you. Premium security tinted pattern: these mailing envelopes feature high quality security patterns with heavy paper stock to protect confidential information, for absolute peace of mind when mailing sensitive information. 10 security tinted self seal envelopes 500 count: forget cheap envelopes that easily split and aren't suitable for secure mailing, our #10 envelopes are designed with a premium security tint to protect sensitive information and a super strong SELF-SEAL strip, perfect for larger documents.

Quick-seal closure: no glue sticks required. Windowless design: envelopes ideal for standard business & legal documents and sensitive correspondence, labeling or hand-addressing, manufactured with a windowless front panel for easy printing, perfect for quick, mass business mailings.
BrandValBox #ad
ManufacturerValBox #ad
Part NumberVB012
ModelVB012

10. EnDoc

#ad

3 7/8x8 7/8 Inch White Business Envelope, 500 Pack, EnDoc #9 Self Seal Security Tinted Envelope, Windowless, Security tinted Pattern, Strong Peel and Seal

#ad
EnDoc #ad - Seal your envelopes in a breeze: the strong self-adhesive tamper-proof seal of these envelopes facilitates convenient use. Designed for secure mailing-Security Tinted Printer friendly great to print on, Heavy 24 Lb.

Measures 3-7/8 by 8-7/8 inches each, 500 Per Box. Size 9 blank regular blank envelopes are used by most businesses as a return envelope as it fits great when inserted in the #10 Standard Envelopes! Safely mail sensitive documents in these high-end #9 security tinted Envelopes, which will keep your papers confidential, protecting them from prying and making sure they reach their destination with privacy. Just peel the adhesive on the fold-over flap and stick the lip to seal the mailer content.
BrandEnDoc #ad
ManufacturerBusiness Envelopes #ad
Part NumberBUS357
ModelBUS357