Flat Poly Bags 7″ x 12″ 4 mil 1000/CTN

Automotive Injector & Spark Plug Kit Bags — 7″ x 12″ / 4 Mil LDPE / 1000 per Carton

These 7″ x 12″ flat poly bags are built for heavy-duty component packaging where the combination of a tall narrow profile and 4 mil gauge matters — automotive injector sets, spark plug kits, suspension hardware, and similar OEM parts distribution items. The 7″ width accommodates most standard spark plug and injector packaging dimensions with room for a parts label, and the 12″ length handles most tall injector bodies and extended-reach spark plugs without folding. At 4 mil, punctures from threaded ends, O-ring grooves, and metal connector tabs are not a concern.

Specs: 7″ x 12″ | 4 Mil | LDPE | 1000/CTN | FDA/USDA Compliant

Applications

Automotive injector and spark plug kit bags, OEM parts distribution packaging, fuel system component bags, suspension hardware bags, medical device component protection, tall cosmetic and personal care product sleeving, candle and wax form packaging, aerosol product protection bags.

Features

• 4 mil LDPE — heavy-duty gauge for threaded, sharp-edged, and metal components
• 7″ width accommodates most injector and spark plug packaging widths
• 12″ length handles tall automotive component bodies and extended-reach hardware
• Heat sealable, tie-close, staple, or tape closure options
• Durable bottom seal or side weld construction
• 1000/CTN — high case count for automotive parts kitting and distribution lines

Material Notes

Manufactured from 100% virgin LDPE (Low-Density Polyethylene) resin meeting FDA/USDA specifications. All listed gauges are nominal. 4 mil at this size provides reliable puncture resistance for metal and plastic components with threaded ends, pressed-in O-rings, and stamped connector tabs. Virgin resin ensures consistent gauge across the full carton run.

Use Case Notes

The 7×12 format at 4 mil is a practical fit for individual spark plug kits (typically 3.5–5″ long), GDI fuel injectors (6–9″ body length), and similar tall automotive components. For kitting operations where a bag is filled with a set of 4 or 6 spark plugs together, the 7″ width accommodates the set width with the 4 mil gauge handling the combined weight and thread contact without stretching or puncturing. For retail display, the bag can be heat sealed for a clean, labeled presentation.

Common Questions

Is 4 mil necessary for spark plug bags?
For single spark plug component bags, 2 mil often works. For kitted sets with multiple parts, threaded ends in contact, or OEM distribution where bags are handled repeatedly in shipping and fulfillment, 4 mil provides reliability that 2 mil bags cannot consistently deliver.

Can this bag be heat sealed for retail display?
Yes. The open end is heat sealable with standard impulse or band sealers. Can also be closed with ties, staples, or tape for non-sealed distribution.

Is this bag FDA compliant?
Yes. Made from 100% virgin LDPE resin meeting FDA/USDA specifications for food contact applications.

Why Buy

The 7×12 / 4 mil specification covers the full range of tall automotive parts kitting from spark plugs and injectors through suspension hardware and brake components. The 1000-count carton is sized for continuous automotive parts distribution and kitting operations, and the 4 mil gauge eliminates the rework and damage claims that thinner bags generate in high-volume handling environments.