4" x 6" 6 Mil Flat Poly Bags - 1,000/Case
What fits in a 4" x 6" bag?
A 4" x 6" flat bag holds items up to about 3.5" wide and 5" long, leaving room at the top to heat-seal it. It is a good fit for business cards, keys, jewelry and small parts. At 6 mil (extra heavyweight), it is made for the heaviest, most puncture-prone loads.
Features
- Acid-free and archival safe
- 1,000 bags per case
Our 6 Mil low-density polyethylene (LDPE) flat poly bags are the strongest option for super heavy-duty applications. Designed to be puncture- and tear-resistant, these extra heavy-duty clear poly bags are perfect for packaging industrial parts, sharp tools, hardware, and other heavyweight products. They keep items protected from dirt, dust, and moisture while maintaining excellent clarity.
- Best for super heavy-duty packaging – Recommended for sharp or heavy industrial products.
- Made from 6 Mil (.006”) low-density polyethylene (LDPE) for maximum strength and durability.
- Seamless tubing construction – No side seals or slits that can rip.
- Dispenser-packed poly bags – Sizes 36” wide and under come in packs of 100 for convenience and cleanliness.
- Heat sealable open-top design – Seal with a heat sealer, tape, or twist tie.
- FDA & USDA compliant – Safe for direct food contact.
- 100% recyclable – Sustainable packaging made from 100% virgin raw materials.
- Dimensions listed in inches – First number represents the bag opening (e.g., 14" x 20").
Please note: These bags are open-top and do not include a reclosable zipper. Manual sealing is required.
Frequently Asked Questions
When will my order ship?
Orders placed before 1 PM Pacific on business days ship the same day from our California warehouse, and delivery usually takes 2–5 business days. Orders of $1,500 or more ship free to commercial addresses. We don't ship to Alaska, Hawaii or Puerto Rico.
How many bags come in a case, and is there a minimum order?
Each case contains 1,000 bags. There's no minimum order, and larger orders get a lower price per case; see the Volume price breaks table on this page.
What does 6 mil mean?
Mil measures film thickness: 1 mil is one-thousandth of an inch (0.001"). At 6 mil, this bag is extra heavyweight, made for the heaviest, most puncture-prone loads. Read more in our guide, What is a Mil?
Are these bags food safe?
Yes. This product meets FDA requirements for direct food contact.
Can these go in the freezer?
They aren't recommended for storage in sub-freezing temperatures.
How do I close these bags?
They have an open top, so you can heat-seal them with an impulse sealer, close them with bag ties or tape, or tie them off.
Can I get a sample before ordering?
Yes. Click on this page and we'll send one out for a $6.99 sample shipping fee.
Can you make a custom size or thickness?
Yes. If you need a size, thickness or quantity we don't stock, send us a Custom Quote Request and we'll get back to you with pricing.
Shop Other Thicknesses
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1.5 Mil Flat Poly Bags
1.5 Mil Flat Poly Bags: Extra Tear Resistance for Light Goods 1.5 mil (.0015") bags are 50% thicker than 1 mil, so they resist tears and punctures noticeably better while...
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2 Mil Flat Poly Bags
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4 Mil Flat Poly Bags
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