Flat Poly Bags 7″ x 7″ 4 mil 1000/CTN

Hex Bolt & Lock Washer Kitting Bags — 7″ x 7″ 4 mil LDPE

These 7×7 flat poly bags are a heavy-gauge open-end format for kitting and sorting small hardware components. At 4 mil, the bag body resists puncture from threaded fasteners, hex bolts, and lock washers without developing pinholes that allow parts to escape during transit or bin storage. The square profile reduces bag waste when filling hardware kits with similar-volume contents on both axes.

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

Applications

Hex bolt and lock washer kit assembly for hardware distribution, hydraulic fitting and valve component sorting, small plumbing fitting and connector kitting, electronic screw and standoff packaging for assembly kits, dental and medical instrument component bagging, and retail hardware blister card insert protection.

Features

4 mil LDPE construction resists puncture from threaded fasteners, sharp edges, and hardware points. Square 7×7 format provides balanced fill space for small component kits. Bottom seal construction provides seam integrity against the weight of dense hardware contents. Open-end format for fast hand-filling of hardware kitting lines. Can be heat sealed, tied, stapled, or taped shut.

Material Notes

100% virgin LDPE (Low-Density Polyethylene) resin. FDA/USDA compliant for food-contact applications. Superior clarity provides component visibility for visual inspection and inventory counting without opening the bag. All gauges are nominal; consistent 4 mil across the full case lot.

Use Case Notes

The 7×7 format accommodates hardware kits of up to approximately 6×6″ and fills with moderate weights typical of bolt and washer assortments (under 1 lb per bag). 4 mil gauge is recommended when bag contents include threaded fasteners with exposed points that would puncture lighter-gauge bags. 1,000 per case volume suits dedicated hardware kitting stations with continuous daily throughput.

Common Questions

Q: Will this hold threaded bolts without puncturing?
A: Yes. 4 mil LDPE provides adequate puncture resistance for standard hex bolts, lock washers, and similar hardware at typical kit weights (under 1 lb per bag).

Q: Are these FDA/USDA compliant?
A: Yes. All materials meet FDA/USDA requirements for direct and indirect food contact.

Q: What is the case quantity?
A: 1000 bags per case.

Why Buy

4 mil construction handles the puncture demands of fastener and hardware kitting without bag failure. Square format reduces film waste for hardware kits with roughly equal length and width. High case count supports continuous hardware sorting and assembly line operations.