Flat Poly Bags 14″ x 20″ 4 mil 500/CTN

Auto Parts & Machined Component Flat Poly Bags — 14×20 in., 4 mil

Industrial-grade 14×20 in. flat poly bags in 4 mil virgin LDPE for protecting auto parts, machined components, and heavy assemblies during storage and transit. The heavy-duty 4 mil wall provides reliable puncture and tear resistance suited to metal, cast, and fabricated parts common in automotive, manufacturing, and MRO applications.

Specs: 14×20 in. | 4 mil | Virgin LDPE | 500/CTN | FDA/USDA Compliant

Applications

Designed for high-volume industrial and automotive parts packaging. Commonly used for brake components, cylinder liners, sprockets, gaskets, and machined hardware. Also used in MRO kitting, OEM parts staging, and supplier packaging programs where individual component protection is required before assembly or shipment.

Features

• 4 mil heavy-duty wall for puncture and abrasion resistance against metal and cast parts
• 14×20 in. format accommodates medium-to-large components and sub-assemblies
• Bottom-seal construction — available in side-weld for added corner strength
• Open-end design compatible with heat seal, tape, staple, or tie closure
• FDA/USDA compliant virgin LDPE resin
• 500 bags per carton for high-volume industrial operations

Material Notes

Manufactured from 100% virgin Low Density Polyethylene (LDPE) resin. The 4 mil gauge is classified as industrial weight, appropriate for metal parts, raw castings, and assemblies with sharp edges or significant mass. LDPE maintains flexibility across a wide temperature range, including cold warehouse and freezer storage environments. All gauges are nominal.

Use Case Notes

At 14 inches wide and 20 inches long, this bag accommodates most medium-to-large automotive components, flat fabricated parts, and multi-piece kits. The 500/CTN pack is appropriate for production-line bagging stations, supplier part kitting, and staging areas where consistent volume throughput is expected.

Common Questions

Q: Is 4 mil sufficient for metal parts with sharp edges?
A: For most machined or stamped metal components, 4 mil LDPE provides adequate protection. For castings with rough flash or very sharp protrusions, a gusseted or padded approach may supplement the bag.

Q: Are these FDA/USDA compliant?
A: Yes. Virgin LDPE resin meets FDA/USDA specifications, making these bags suitable for both industrial and food-adjacent applications.

Q: What is included per carton?
A: 500 bags per carton. Carton quantities are standard for wholesale and industrial procurement.

Why Buy

These 14×20 flat poly bags deliver industrial 4 mil LDPE durability in a high-count 500/CTN format for auto parts, machined components, and MRO assembly packaging. Open-end format and broad closure compatibility make them a flexible choice for production-line and warehouse operations.