Industrial packaging buyers protecting heavy-duty products like tools, hardware, and mechanical components need reliable, cost-effective storage solutions. These 8 x 40" 4 mil flat poly bags deliver durability and puncture resistance in a bulk case format, making them ideal for manufacturers, distributors, and warehouses requiring FDA/USDA compliant packaging at scale.

Best For
How to choose
Specs at a Glance
| Material | 100% Virgin Polyethylene (LDPE) |
| Dimensions | 8" x 40" (Flat) |
| Thickness | 4 Mil |
| Color | Clear |
| Recyclable | Yes |
Common Use Cases
- Hardware and tool storage and shipping Industrial parts protection and organization Food-safe storage and bulk goods packaging Promotional items and retail goodie bags Medical and pharmaceutical product containment
What You'll Receive
- Case of 500 flat poly bags (8" x 40", 4 mil thickness) Open-end design ready for immediate use
Shipping & Packaging
Frequently Asked Questions
Yes. These 4 mil flat poly bags are manufactured to meet FDA and USDA specifications, making them suitable for food storage, snack packaging, and other food-grade applications while maintaining compliance with packaging requirements.
These open-end poly bags seal efficiently with twist ties for quick closures, bag tape for permanent sealing, or impulse sealers for high-volume operations. Choose based on your production speed and application requirements.
4 mil polyethylene provides puncture resistance and durability for heavy-duty industrial applications. This thickness protects tools, hardware, and machinery parts during storage and shipping while offering better cost-per-use than thinner alternatives that may tear under stress.
Each case contains 500 bags, providing significant per-unit savings for bulk industrial operations. Purchasing by the case reduces per-bag costs compared to smaller quantities, making this ideal for ongoing manufacturing and distribution needs.
Technical Specifications
| Thickness | 4 Mil |
| Recyclable | Yes |
| Color | Clear |
| Strength / Material | 4 Mil |
| Dimensions (Internal) | 8" × 40" (L × W × H) |
Shipping Information
Outer Carton Dimensions
8" × 40" (L × W × H)
Unit of Measure
CASE
Qty Per Shipping Unit
500 PER CASE
LTL Freight Class
Class 60
Delivery Method
Shown at checkout
Processing and delivery timelines vary by product, warehouse, order size, and destination. Freight-sensitive or oversized items may require LTL delivery or a custom quote before shipment.
Checkout shows available shipping options for the selected SKU and quantity. Use the shipping and refund policy links for current policy details before ordering.
For larger, recurring, freight-sensitive, or mixed-SKU orders, send the SKU or product link, quantity, delivery ZIP code, receiving notes, and timing to support@packrift.com.
ORDER SUPPORT
Product Support
Specs, case quantities, and availability are listed on each product page. For bulk, mixed-SKU, or LTL freight orders, email support@packrift.com with the SKU, quantity, and delivery ZIP.
Use product support for fit, larger or recurring order, return, or order-issue questions. When price and Add to Cart are shown, checkout remains the direct ordering path.
Need a sample, fit check, or substitution review? Contact product support with the SKU, selected option, order quantity, and use case. Support will confirm the available path for that item.
Contact product supportBuyer guides
Buying notes and spec resources stay here instead of taking space above the cart.
Use this product as the source
8x40" 4 Mil Clear Poly Bags - Heavy-Duty Protection, Case of 500
Related products
Shop poly bags
Compare resources using the current product page data: SKU PB1144 , type Bags - Poly , sold-as unit CASE / pack count 500 PER CASE . Confirm the product page price, availability, and selected variant before ordering.
Compare width, length, mil thickness, closure, material, and case quantity.
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