Flat Poly Bags 5″ x 7″ 4 mil 1000/CTN

PCB Board & Precision Parts Poly Bags 5×7

Heavy-duty 4 mil flat poly bags in 5 x 7 inches, manufactured from 100% virgin LDPE resin meeting FDA/USDA specifications. The 4 mil gauge provides substantial resistance to puncture and abrasion, making these bags well-suited for protecting small precision components, electronics, and machined parts in warehouse, assembly, and fulfillment environments.

Specs: 5″ x 7″ | 4 mil | LDPE | 1000/Carton | FDA/USDA Compliant

Applications

PCB boards and electronic assemblies, small precision machined parts, hardware kit components, wire harness sub-assemblies, o-rings and seals, small bearings and clips, medical device components, and retail assembly kits requiring individual piece protection.

Features

Bottom seal construction delivers uniform strength across the bag base. The 4 mil gauge holds firm against metal edges and threaded fasteners that would puncture lighter gauge bags. Bags can be heat sealed, tied, taped, or stapled. Compatible with most desktop heat sealers accommodating a 5-inch or wider jaw.

Material Notes

LDPE (Low-Density Polyethylene) offers excellent clarity and flexibility. 100% virgin resin meets FDA/USDA specifications for incidental food contact where applicable. Suitable for ESD-neutral applications where anti-static protection is not required.

Use Case Notes

The 5 x 7 inch format fits standard PCB modules, small electronic assemblies, and most individual hardware components. At 4 mil, these bags are commonly used in kitting and assembly operations where components must be individually bagged before kit consolidation. The carton of 1000 supports high-volume production and fulfillment workflows.

Common Questions

Q: Are these anti-static?
A: No. These are standard LDPE bags with no anti-static additive. For ESD-sensitive electronics, use pink anti-static or static shielding bags instead.

Q: Will 4 mil hold up against threaded fasteners?
A: Generally yes for standard storage and transit. For sharp or pointed hardware, orienting parts carefully inside the bag reduces the risk of gauge-through puncture.

Q: Are these FDA/USDA compliant?
A: Yes. Made from 100% virgin LDPE resin meeting FDA/USDA specifications for incidental food contact.

Why Buy

Carton of 1000 bags provides sufficient volume for production kitting, assembly line staging, and high-throughput fulfillment. The 4 mil heavy-duty gauge at a compact 5 x 7 format is a practical choice where lighter bags fail against hardware edges or where part protection requirements exceed what a standard 1.5 or 2 mil bag can provide.