9 x 18 Flat Poly Bags (4 Mil) - Heavy-Duty Protection for Parts & Hardware
When you need serious protection for heavier items, these 4 mil flat poly bags deliver. The extra-thick polyethylene handles sharp edges, heavy hardware, and bulky parts without puncturing or tearing. At 9 x 18 inches, they're sized for longer items like tools, automotive parts, craft supplies, and industrial components.
Specs: 9 x 18" | 4 mil | LDPE (Low-Density Polyethylene) | 1000/case | FDA food-contact compliant
Key Features
- 4 Mil Thickness: Heavy-duty construction resists punctures from sharp corners, screws, and metal parts — no more torn bags in storage
- Crystal Clear LDPE: See contents at a glance without opening, perfect for inventory management and quick identification
- Flexible & Durable: Low-density polyethylene stays pliable even in cold storage while maintaining tear resistance
- Food-Contact Safe: Made from 100% virgin resin meeting FDA/USDA specifications — safe for food storage and non-food applications alike
- Generous 9x18 Size: Accommodates longer items, tools, hardware kits, and craft supplies with room for easy sealing
Applications
- Hardware & Parts Storage: Organize screws, bolts, brackets, and small tools. The thick material protects against sharp edges and metal components
- Craft Business Organization: Store dowels, fabric strips, ribbon rolls, and longer craft supplies. Clear material lets you find what you need fast
- Shipping Protection: Add an extra layer inside mailers for fragile or pointed items. The 4 mil thickness prevents in-transit damage
- Workshop & Garage: Keep drill bits, saw blades, and small power tool accessories organized and protected from dust and moisture
Common Questions
Q: How thick is 4 mil compared to regular poly bags?
A: 4 mil is considered heavy-duty — about twice as thick as standard 2 mil bags. You can feel the difference immediately. These bags handle sharp hardware, heavy parts, and rough handling that would tear thinner bags.
Q: Can I use these for food storage?
A: Yes! These bags are made from 100% virgin LDPE resin that meets FDA food-contact requirements. They're safe for storing dry goods, freezing items, or any food application where you need sturdy, reliable bags.
Q: What's the best way to seal these bags?
A: You can fold over the top and tape, use twist ties, or heat seal for a permanent closure. The 4 mil thickness heat seals beautifully with standard poly bag sealers.
Why Choose Cellobags.com
For over 40 years, we've helped small businesses, workshops, and makers find the right packaging. Whether you're organizing your inventory or shipping products to customers, we stock what you need and ship fast — most orders go out within 24 hours. Questions? Our team actually knows packaging and loves to help.
