Hero image 0 of 100 - Pack #10 Security Envelopes Self Seal Envelopes 4-1/8" x 9-1/2", 0 of 5
100 - Pack #10 Security Envelopes Self Seal Envelopes 4-1/8" x 9-1/2"
Key item features
- SECURITY FEATURES: Built-in security tint pattern prevents content visibility through envelope, ensuring confidential documents remain private. No Window.
- DIMENSIONS: Standard #10 size measuring 9.5 x 4.125 inches, perfect for business letters and standard documents
- SELF-SEALING: Convenient self-adhesive closure eliminates the need for moistening, providing quick and secure sealing
- PROFESSIONAL DESIGN: Crisp white business envelopes with clean lines and premium paper quality for a professional presentation
- VERSATILE USE: Ideal for business correspondence, invoices, statements, and other professional mailings requiring privacy protection
Specs
- Envelope typeSecurity Envelopes
- ColorWhite
- Envelope closure styleSelf-Adhesive
- Brandsupplyhut
Current price is USD$8.45
Price when purchased online
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About this item
Product details
Keep your sensitive documents secure with these professional #10 self-sealing security envelopes. Measuring 9.5 x 4.125 inches, these standard business-sized envelopes feature a convenient self-adhesive seal that eliminates the need for moistening. The built-in security tint pattern on the inside provides confidentiality by preventing contents from being viewed through the envelope. Perfect for mailing checks, statements, invoices, and other private correspondence, these white envelopes offer both practicality and peace of mind. The classic #10 size accommodates standard letter-sized documents folded into thirds, making them ideal for professional and personal mailings. Their reliable self-sealing design ensures your documents stay securely sealed during transit while saving you valuable time. These envelopes combine functionality with security features to meet your everyday mailing needs.
- SECURITY FEATURES: Built-in security tint pattern prevents content visibility through envelope, ensuring confidential documents remain private. No Window.
- DIMENSIONS: Standard #10 size measuring 9.5 x 4.125 inches, perfect for business letters and standard documents
- SELF-SEALING: Convenient self-adhesive closure eliminates the need for moistening, providing quick and secure sealing
- PROFESSIONAL DESIGN: Crisp white business envelopes with clean lines and premium paper quality for a professional presentation
- VERSATILE USE: Ideal for business correspondence, invoices, statements, and other professional mailings requiring privacy protection
info:
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Specifications
Envelope type
Security Envelopes
Color
White
Envelope closure style
Self-Adhesive
Brand
supplyhut
Warranty
Warranty information
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Customer ratings & reviews
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Showing 1-2 of 2 reviews
Mar 7, 2026
Marilyn
Top Reviewer
5 out of 5 stars review
Verified Purchase
Just as needed
I an still old school and send a lot of handwritten letters. At least one a day. This is a good amount and the seal is best of ANY I have tried before.
Helpful?143F161S29MY17041760352
Nov 19, 2025
C
Top Reviewer
2 out of 5 stars review
Verified Purchase
Deceptive advertising
Ad shows envelopes in a box. I received loose envelopes in a brown envelope. No box!
Helpful?143F161S29MY17041760352
