Versatile small parts bags ideal for hardware, jewelry components, craft supplies, and sample packaging. These 4" x 4" flat poly bags provide an economical packaging solution for small items that need protection from dust, moisture, and handling damage. Commonly used by hardware distributors, jewelry suppliers, craft retailers, and e-commerce sellers, these bags offer excellent clarity for product visibility while maintaining the durability needed for everyday commercial use. Made from 100% virgin Low Density Polyethylene (LDPE) resin, these bags feature a durable bottom seal that prevents splitting and tearing during handling. The 2 mil thickness strikes an optimal balance between protection and cost-efficiency—strong enough for most light-to-medium duty applications while remaining economical for high-volume packaging needs. The LDPE material provides superior clarity compared to recycled alternatives, allowing customers to see product quality at a glance. Each bag meets FDA/USDA specifications for food contact, making them suitable for packaging candy, nuts, samples, and other consumables in addition to non-food items. The open-top design allows for multiple closure options—heat seal for tamper-evidence, tie for quick access, or staple for permanent closure. This flexibility makes them adaptable to various packaging workflows and equipment. Key Benefits: Superior clarity for product visibility and presentation Food-contact compliant LDPE meets FDA/USDA specifications Durable bottom seal prevents splitting during handling Multiple closure options: heat seal, tie, staple, or tape Economical solution for high-volume packaging operations Specifications: 4" x 4" | 2 mil | LDPE | 1000/case | FDA-compliant Common Applications: Packaging hardware fasteners (screws, bolts, nuts, washers), jewelry components and findings, craft supplies and notions, cosmetic samples, pharmaceutical samples, candy and nut portions, small electronics parts, and general-purpose small parts storage. What are flat poly bags used for? Flat poly bags are open-ended polyethylene bags used to package, protect, and display small items. They provide moisture and dust protection while maintaining product visibility, making them ideal for retail packaging, parts organization, and shipping applications. What is the difference between 2 mil and 4 mil poly bags? 2 mil poly bags are lighter and more economical, suitable for lightweight items and applications where puncture resistance is not critical. 4 mil bags offer twice the thickness, providing greater puncture resistance and durability for heavier items or rough handling conditions. Can I heat seal poly bags? Yes, LDPE poly bags can be heat sealed using an impulse sealer or constant heat sealer. Heat sealing creates a tamper-evident closure and is ideal for food packaging, sample distribution, and applications requiring secure containment.