Industrial packaging buyers seeking durable, cost-effective protection for tools, hardware, and heavy items need reliable flat poly bags that withstand demanding conditions. These 4 mil, 20" x 4" clear poly bags offer puncture resistance and clarity for product visibility while meeting FDA and USDA compliance standards, making them ideal for manufacturers, distributors, and retailers managing bulk inventory.

Best For
How to choose
Specs at a Glance
| Material | 100% Virgin Polyethylene (LDPE) |
| Thickness | 4 Mil |
| Dimensions | 20" Length x 4" Width |
| Color | Clear |
| Recyclable | Yes |
Common Use Cases
- Protecting tools, hardware, and fasteners during storage and shipping Food storage and industrial food packaging compliant with FDA/USDA standards Retail product packaging for small items, treats, and promotional merchandise Medical and pharmaceutical product protection with regulatory compliance Moisture and dust protection for manufacturing components and inventory management
What You'll Receive
- 1,000 clear flat poly bags per case (20" x 4" x 4 mil)
Shipping & Packaging
Frequently Asked Questions
Yes. These 4 mil poly bags meet all FDA and USDA specifications, making them suitable for food storage, pharmaceutical packaging, and medical applications where regulatory compliance is mandatory.
You can close these bags using twist ties, bag tape, or impulse sealers. Each closure method provides secure sealing for different application needs, twist ties for quick closures, tape for permanent seals, and sealers for high-volume automation.
4 mil thickness delivers puncture and tear resistance, protecting heavy tools and hardware from damage while offering significantly longer product lifespan. The added durability reduces replacement frequency and minimizes product loss, delivering better ROI for bulk purchases.
Each case contains 1,000 bags, providing significant volume for efficient bulk storage and shipping. This case quantity reduces per-unit costs and minimizes reordering frequency, improving inventory management and supply chain efficiency for industrial operations.
Technical Specifications
| Thickness | 4 Mil |
| Recyclable | Yes |
| Color | Clear |
| Strength / Material | 4 Mil |
| Dimensions (Internal) | 20" Γ 4" (L Γ W Γ H) |
Shipping Information
Outer Carton Dimensions
20" Γ 4" (L Γ W Γ H)
Unit of Measure
CASE
Qty Per Shipping Unit
1000 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.
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Buying notes and spec resources stay here instead of taking space above the cart.
Use this product as the source
4 Mil Clear Flat Poly Bags 20x4 - Heavy-Duty Protection, Case of 1000
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Compare resources using the current product page data: SKU PB1077 , type Bags - Poly , sold-as unit CASE / pack count 1000 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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