Tamper-Proof Envelopes

69 results
Staples Self Seal Catalog Envelopes, 10"L x 13"H, White, 100/Box (21571) image 1
Item: 329850
Model: ST21571-CC

Ship marketing materials without having to fold them with these white tear-resistant catalog envelopes. Each one resists tears, punctures and moisture thanks to the 28-pound wove material, and the self-seal closure feature helps secure contents. These Staples white tear-resistant catalog envelopes have perforated seals to alert you of tampering and a tinted interior to prevent third parties from seeing the contents..Catalog envelopes are perfect for catalogs, brochures, and leaflets.Durable, lightweight, and tear-resistant 10gsm woven paper..Dimensions: 10"L x 13"H, size #13.Self seal for secured sealing.Envelopes come in boxes of 100.Make shipping marketing materials easy with these Staples 10 x 13-inch white tear-resistant catalog envelopes.

Price is  $88.29
Unit of measure 100/Box
Next-Day Delivery by tomorrow
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Packing List Envelope, 4.5" x 5.5", Clear, "Packing List Enclosed", 1000/Case (ENVPQ11) image 1
Item: 948612
Model: PL11

The Packing list envelope in clear color measuring 4.5" x 5.5" is made of 2 mil tamper proof material to keep documents clean and safe. Envelope has back loading design and helps you keep things organized, sold as 1000 per case..Pressure sensitive envelopes are the industry standard for quality performance.Specially formulated hot melt adhesive insures instant bonding to boxes, cases, tubes and other containers.2 mil tamper proof envelopes keep documents clean and safe.Back Loader style keeps documents secure in transit because they cannot be removed without destroying the envelope.Envelopes open along the first dimension.Dimensions listed are outside - deduct 1/2" for inside dimensions.Loading Style: Back Loading.Mil: 2 Mil.Weight: 8.Packing List Envelope is transparent pressure sensitive envelope that allows your document to be read.

Price is  $47.49
Unit of measure 1000/Carton
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Quality Park Redi-Seal Security Tinted #10 Window Envelope, 4 1/8" x 9 1/2", White Wove, 500/Box (21418) image 1
Item: 458294
Model: QUA21418

Protect sensitive documents with these security envelopes. The blue-tint interiors shield items from view, while the clear windows let you address letters without the need for labels. The convenient peel-and-seal adhesive closures keep paperwork securely tucked inside. With a woven white design, these Quality Park Redi-Seal envelopes provide a neutral background for address labels, postage and custom stamps..Envelopes are great for mailing letters and documents.Made from 24 lbs. white paper for durability.These envelopes measure 4 1/8" x 9 1/2" in size, providing enough space for your mail.Redi-Seal closure with commercial flap seals securely without moistening.Security tinted pattern helps to discourage reading sensitive information through the outside of the envelope.Convenient box of 500 envelopes ensures ample supply.Simply position the address to show through the single-left window.Double-flap design keeps gum from sticking before use..Made in the USA.Prepare invoices, payments and other mailings with these Quality Park Redi-Seal self-sealing #10 single-window security envelopes.

Price is  $99.29
Unit of measure 500/Box
Next-Day Delivery by tomorrow
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Quality Park Survivor Tyvek Expansion Flap-Stik Catalog Envelopes, 12" x 16", 50/Carton (QUAR4497) image 1
Item: 827877
Model: QUAR4497

Safely mail photographs or sensitive paperwork in these tough, durable Tyvek mailers that protect contents from punctures, scratches, moisture, or impact-related damage. These Quality Park SURVIVOR self-adhesive Flap-Stik Tyvek mailer envelopes stay closed during transit and special panels reveal the word "Opened" in bold red letters if forced open..Catalog envelopes are a convenient and reliable choice for personal and business mailing purposes.White Tyvek envelopes provide superior protection for mailing important materials or documents.Dimensions: 12"L x 16"H.Flap-Stik self-seal closure provides a clean, quick seal immediately upon contact.50 envelopes per carton.Water- and moisture-resistant.Expands up to 4" for greater storage capacity.Open-side design with the opening on the long side makes insertion and removal of contents as easy as possible.Protect important documents and confidential files with this pack of Quality Park SURVIVOR self-adhesive Flap-Stik Tyvek mailer envelopes.

Price is  $300.89
Unit of measure 50/Carton
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Staples Reveal-N-Seal #9 Double Window Envelope, 3 7/8" x 8 7/8", White, 300/Box (20567-US) image 1
Item: 902474
Model: 67529S

The Quality Park Reveal-N-Seal 67529S #9 white double window envelope measuring 3 7/8" x 8 7/8", features strong, tamper-evident seal to protect confidential documents. It has small perforations along the flaps for tampering. This security-tinted envelope offers self-sealing closure that requires no moisture to seal..Comes in white color.Trade size: #9, Envelope size: 3 7/8" x 8 7/8".Paper weight: 24 lbs..Envelope/mailer type: Tax and business form.Closure: Self-adhesive.Seam type: Contemporary.Window position of bottom left/top left.Exterior material: Paper.Finish: Wove.Suggested use: Double window for invoices.Format/border: Standard, Opening: Open side.Security tinted for added safety.Box of 300 envelopes.3 7/8" x 8 7/8" Reveal-N-Seal invoice size double window envelopes and its unique glue provides for longer shelf life than normal self-seal envelopes.

Price is  $49.99
Unit of measure 300/Box
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Staples Packing List Envelope, 10" x 12" , Clear, 500/Case (PL100) image 1
Item: 948210
Model: PL100

The Packing list envelope in clear color measuring 10" x 12" is made of 2 mil tamper proof material to keep documents clean and safe. Envelope has back loading design and helps you keep things organized, sold as 500 per case..Dimensions: 10" x 12".2 mil tamper proof envelopes keep documents clean and safe.Back Loading.500/Case.Packing List Envelope is transparent pressure sensitive envelope that allows your document to be read.

Price is  $129.69
Unit of measure 500/Carton
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Staples Packing List Envelope, 6.5" x 10", Clear Face, 1000/Case (PL476) image 1
Item: 948639
Model: PL476

The Packing list envelope in clear color measuring 6.5" x 10" is made of 2 mil tamper proof material to keep documents clean and safe. Envelope has back loading design and helps you keep things organized, sold as 1000 per case..Transparent envelopes allow your document to be clearly read through the poly..2 Mil tamper proof envelopes keep documents clean and safe..Back Loading..Packing List Envelope is transparent pressure sensitive envelope that allows your document to be read.

Price is  $163.79
Unit of measure 1000/Carton
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Quality Park Survivor Tyvek Self Seal Catalog Envelopes, 12"L x 16"H, White, 25/Box (QUAR4292) image 1
Item: 813459
Model: QUAR4292

Safely mail photographs or sensitive paperwork in these tough, durable Tyvek mailers that protect contents from punctures, scratches, moisture, or impact-related damage. These Quality Park Survivor self-adhesive Flap-Stik Tyvek mailer envelopes stay closed during transit, and special panels reveal the word "Opened" in bold red letters if forced open..Expansion envelopes offer security for bulky mailings.White Tyvek envelopes provide superior protection for mailing important materials or documents.Dimensions: 12"L x 16"H.Flap-Stik self-seal closure provides a clean, quick seal immediately upon contact, the peel-off strip protects the adhesive from dust for a longer shelf life.Envelopes come in boxes of 25, making them an easy and economical choice for the business that needs to spend wisely without sacrificing quality.Tyvek material is lightweight and can save on postage.Tear- and moisture-resistant.Gusseted sides expand up to 2" to accommodate bulky items.Ensure important materials arrive undamaged with this pack of Quality Park Survivor self-adhesive Flap-Stik Tyvek mailer envelopes.

Price is  $112.69
Unit of measure 25/Box
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Quality Park Survivor Tyvek Self Seal Catalog Envelopes, 12"L x 16"H, White, 25/Box (QUAR4292) image 1
Item: QUAR4292
Model: QUAR4292

Safely mail photographs or sensitive paperwork in these tough, durable Tyvek mailers that protect contents from punctures, scratches, moisture, or impact-related damage. These Quality Park Survivor self-adhesive Flap-Stik Tyvek mailer envelopes stay closed during transit, and special panels reveal the word "Opened" in bold red letters if forced open..Expansion envelopes offer security for bulky mailings.White Tyvek envelopes provide superior protection for mailing important materials or documents.Dimensions: 12"L x 16"H.Flap-Stik self-seal closure provides a clean, quick seal immediately upon contact, the peel-off strip protects the adhesive from dust for a longer shelf life.Envelopes come in boxes of 25, making them an easy and economical choice for the business that needs to spend wisely without sacrificing quality.Tyvek material is lightweight and can save on postage.Tear- and moisture-resistant.Gusseted sides expand up to 2" to accommodate bulky items.Superior protection for mailing bulky items which are not too heavy.Ideal replacement for costly box or carton.Convenient Flap-Stik® closure.Plain, open-ended with a 2" exp.Ensure important materials arrive undamaged with this pack of Quality Park Survivor self-adhesive Flap-Stik Tyvek mailer envelopes.

Price is  $159.47
Unit of measure 25/Box
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Quality Park Reveal-N-Seal Security Tinted #10 Window Envelope, 4 1/8" x 9 1/2", White Wove, 500/Box (67418) image 1
Item: 717362
Model: QUA67418

Keep confidential information away from prying eyes with these instant-seal security envelopes. Each one is manufactured with premium 24-pound wove paper, making it ideal for everyday business and personal use, while the bright white coloring delivers a clean, professional look. These Quality Park Reveal-N-Seal single-window envelopes feature a self-seal closure that eliminates the need to moisten the flap or use a pull-off strip..#10 Single window envelopes are suitable for all your mailing needs.These envelopes measure 4 1/8"H x 9 1/2"L in size, providing enough space for your mail.Made from 24# White Wove for durability.Our dependable Reveal-N-Seal patented envelope design has a unique flap that folds up and into place for a firm seal that won't close and stick prematurely; plus, no peel-strip waste to clean up!.Security tinted pattern helps to discourage reading sensitive information through the outside of the envelope.This single window envelope has a 1-1/8" x 4-1/2" window, positioned 7/8" from the left and 1/2" from the bottom.500 envelopes per box ensures ample supply.Protect confidential mail with this 500-pack of Quality Park Reveal-N-Seal #10 single-window instant-seal security envelopes.

Price is  $101.59
Unit of measure 500/Box
Next-Day Delivery by tomorrow
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TripLok Series E Deposit Bags, Clear, 50/Pack (585048) image 1
Item: 659430
Model: 585048

Protect cash from thieves with this TripLok clear tamper-evident cash bag. This cash bag features a tamper-evident design that cannot be bypassed by heat, freezing, chemicals or physical alterations, while the reinforced seams provide durability that surpasses the burst strength of the film. This TripLok clear tamper-evident cash bag can be used in transactions with various major banks and cash vaults or the Federal Reserve..Deposit bags keep contents secure and detect tampering.Clear color provides high visibility.50 per pack.The triple-seal closure and self-sealing adhesive holds currency securely.Void message reveals tampering attempts.Special thermochromic ink turns red when subjected to heat.Micro perforation immediately reveals attempts to pull closure up.Aqua detect ink reveals exposure to fluids.Security micro printing and indented side welds preventing cut and resealing.Holds up to 4000 bills.Ensure cash stays safe from thieves with this TripLok clear tamper-evident cash bag.

Price is  $31.19
Unit of measure 50/Pack
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TripLok Series H Deposit Bags, Clear, 50/Pack (585059) image 1
Item: 516719
Model: 585059

The Highest-Performing Security Bag in Banking.Capacity: 16000 notes/16 bundles.High visibility void message reveals tampering attempts.Patented triple-seal closure with interior adhesive leaves no openings once sealed.Special thermochromic ink turns red when subjected to heat.Security micro perforation immediately reveals attempts to pull closure up.Anti-static liner does not cling to hands and clothes, speeding up processing.Aqua detect ink reveals exposure to fluid.Large serial numbers and barcodes for easy tracking via CCTV.Security micro printing and indented side welds preventing cut and resealing.Purchase 2 packs to receive a carton

Price is  $63.19
Unit of measure 50/Pack
Next-Day Delivery by tomorrow
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SafeLok Series A Deposit Bags, Clear, 100/Pack (585087) image 1
Item: 369022
Model: 585087

Keep items safe from dirt, moisture and other damage with this clear deposit bag. The tamper-revealing design makes it difficult to cut open this bag without causing obvious damage, and when extreme temperatures or chemicals are used, a message is activated making you aware of attempted theft. This ControlTek SafeLok deposit bag is transparent, letting you easily view contents at a glance..Deposit bags keep contents secure and detect tampering.100 per pack.Holds 1000 bills.Self-sealing adhesive holds currency securely.Special thermochromic ink turns red when subjected to heat.Anti-static liner does not cling to hands and clothes, speeding up processing.Security border and micro printing prevent cutting and resealing.GS1 barcodes for Cash Visibility compliance andallowing for greater transparency and efficiencythroughout the entire cash cycle..Vault Process Certified (VPC) film contains uniqueadditives that allow for thinner walls withoutsacrificing the strength of thicker bags. Theresult is a lighter bag that saves money on shippingweight and has a lower impact on theenvironment..Protect checks, cash and other valuables with this ControlTek SafeLok clear tamper-evident deposit bag.

Price is  $18.69
Unit of measure 100/Pack
Next-Day Delivery by tomorrow
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TripLok Series D Deposit Bags, Clear, 100/Pack (585040) image 1
Item: 659428
Model: 585040

The Highest-Performing Security Bag in Banking.Capacity: 2000 notes/2 bundles.High visibility void message reveals tampering attempts.Patented triple-seal closure with interior adhesive leaves no openings once sealed.Special thermochromic ink turns red when subjected to heat.Security micro perforation immediately reveals attempts to pull closure up.Anti-static liner does not cling to hands and clothes, speeding up processing.Aqua detect ink reveals exposure to fluid.Large serial numbers and barcodes for easy tracking via CCTV.Security micro printing and indented side welds preventing cut and resealing.Purchase 5 packs to receive a carton

Price is  $62.29
Unit of measure 100/Pack
Next-Day Delivery by tomorrow
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SafeLok Series A Deposit Bags, White, 100/Pack (585089) image 1
Item: 615856
Model: 585089

Secure and easy-to-use tamper-evident security bag for storing deposits and cash transfers..Deposit bag keeps contents secure and detects tampering.Comes in opaque white.100 per pack.Void message reveals tampering attempts.Special thermochromic ink turns red when subjected to heat.Microperforation immediately reveals attempts to pull closure up.Aqua detect ink reveals exposure to fluids.Security microprinting and indented side welds prevent cutting and resealing.Holds up to 1000 bills

Price is  $38.09
Unit of measure 100/Pack
Next-Day Delivery by tomorrow
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CONTROLTEK Deposit Bags, 1 Compartment, 500/Carton (585609) image 1
Item: 24648522
Model: 585609

Protect your cash, while protecting the environment! Remain confident in the security of your cash-in-transit while reducing the environmental burden of your cash handling operations. The most environmentally friendly bag without compromising security or durability..GreenCircle Certified 90% Post-Consumer Recycle (PCR) film reduces your company’s carbon footprint..Maximum security ensuring unmatched protection for your cash while showing immediate signs at tampering to deter and prevent cash..Vault Process Certified (VPC) film contains unique additives that allow for thinner walls without sacrificing the strength of thicker bags. The result is a lighter bag that saves money on shipping weight and has a lower impact on the environment..Specifically formulated to withstand the vigor of cash vault and armored truck environments, filled bags can be palletized without the risk of sliding and bursting..GS1 barcodes for Cash Visibility compliance and allowing for greater transparency and efficiency throughout the entire cash cycle..100 bags a pack, 5 packs total.The First and Only 90% Post-Consumer Recycled Tamper-Evident Bag

Price is  $185.19
Unit of measure 500/Carton
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CONTROLTEK Deposit Bags, 1 Compartment, 500/Carton(585608) image 1
Item: 24648521
Model: 585608

Protect your cash, while protecting the environment! Remain confident in the security of your cash-in-transit while reducing the environmental burden of your cash handling operations. The most environmentally friendly bag without compromising security or durability..GreenCircle Certified 90% Post-Consumer Recycle (PCR) film reduces your company’s carbon footprint..Maximum security ensuring unmatched protection for your cash while showing immediate signs at tampering to deter and prevent cash..Vault Process Certified (VPC) film contains unique additives that allow for thinner walls without sacrificing the strength of thicker bags. The result is a lighter bag that saves money on shipping weight and has a lower impact on the environment..Specifically formulated to withstand the vigor of cash vault and armored truck environments, filled bags can be palletized without the risk of sliding and bursting..GS1 barcodes for Cash Visibility compliance and allowing for greater transparency and efficiency throughout the entire cash cycle..100 bags a pack, 5 packs total.The First and Only 90% Post-Consumer Recycled Tamper-Evident Bag

Price is  $102.89
Unit of measure 500/Carton
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CoinLok Deposit Bags Compartments, Clear (585100) image 1
Item: 502566
Model: 585100

Ensure contents stay safe from damage and tampering with these clear bags. The sturdy, durable construction prevents breakage, while the tamper-resistant closure features a strong adhesive for added security. A reinforced die-cut handle withstands up to 100 pounds, so you can easily carry large amounts of currency. These ControlTek CoinLOK clear tamper-evident bags have highly visible barcodes for quick scanning, and the large serial numbers allow for simple tracking using CCTV..Deposit bags keep contents secure and detect tampering.Capacity: 50 lb. coin.50 per pack.Self-sealing adhesive holds currency securely.Meets VPC (Vault Process Certification)standards for security and performance.Exceptionally strong construction that virtuallyeliminates breakage.Low slip surface for easy stacking.Large serial numbers for easy tracking via CCTV.Keep currency and other valuables secure with this ControlTek CoinLOK clear tamper-evident bags.

Price is  $60.69
Unit of measure 50/Pack
Next-Day Delivery by tomorrow
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PM Company Deposit Bags, Clear, 100/Box (58002) image 1
Item: 921831
Model: PMF58002

Pack and seal money collected from your company's tills with these PM Company disposable deposit money bags. Labeled spaces for dollar amounts, dates and other essential information ensure accurate accounting, and the removable top strips serve as a receipt for every deposit. The clear construction keeps the contents visible, so you know what's being sent to the bank. These PM Company disposable deposit money bags feature a tamper-evident design to prevent potential employee theft. Made from 2.5 mil thick plastic. Sold as 100 bags per box..Money bag perfect choice to detect tampering with contents.Clear plastic allows easy viewing.100 per box.Bag dimension: 9" x 12".Made from 2.5 mil thick plastic.Prepare nightly deposits with these PM Company clear plastic disposable deposit money bags.

Price is  $44.79
Unit of measure 100/Pack
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PM Company Dual Deposit Bags, Clear 100/Pack (58008) image 1
Item: 1416849
Model: PMC58008

Stay organized with these 15 x 10-inch PM Company disposable tamper-evident deposit bags. Each one is made from a strong coextruded film for durability and can handle heavy content and remains opaque to conceal the contents. Customization and sorting are simple thanks to an easy-to-write-on surface and sequential numbering for tracking purposes. These PM Company clear dual deposit bags are sold in packs of 100..Money bag perfect choice to detect tampering with contents.Clear plastic allows easy viewing.100 per pack.Bags are tear-resistant.Keep these PM Company clear dual deposit bags on hand to make sorting cash, checks and receipts simple.

Price is  $78.89
Unit of measure 100/Pack
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SafeLok Series D Deposit Bags, White, 100/Pack (585094) image 1
Item: 24421989
Model: 585094

These secure and easy-to-use tamper-evident security bags can be used for store deposits and cash transfers..Deposit bags keep contents secure and detect tampering.Comes in white.100 bags per pack.Vault Process Certified (VPC) film contains uniqueadditives that allow for thinner walls withoutsacrificing the strength of thicker bags. The result isa lighter bag that saves money on shipping weightand has a lower impact on the environment..Void message reveals tampering attempts.Special thermochromic ink turns red when subjected to heat.Security micro printing and indented side welds prevent cutting and resealing.Press2Lok closure.Holds up to 2000 bills

Price is  $33.89
Unit of measure 100/Pack
Next-Day Delivery by tomorrow
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About Tamper-Proof Envelopes

Tamper-proof envelopes are essential for secure mailing and shipping, designed to protect sensitive documents and valuable items from unauthorized access. These envelopes provide peace of mind, ensuring that contents remain confidential and intact during transit.

Constructed with durable materials, tamper-proof envelopes are ideal for businesses and individuals who prioritize security. Their unique designs deter tampering, making them a reliable choice for legal documents, financial information, and other sensitive materials.

When selecting tamper-proof envelopes, consider features such as self-sealing closures and tear-resistant materials that enhance security. Many options also include visible tamper-evident seals, providing clear evidence if an envelope has been compromised.

Additionally, look for envelopes with varying sizes and styles to accommodate different mailing needs. Options with opaque exteriors help maintain privacy, while those with easy-to-use designs streamline the shipping process, making them a practical choice for any mailing requirement.