Snap Lock Bottom Box Explained: How the 1-2-3 Bottom Works and When to Choose It (Video)

This 60-second video sums up the buying guide. The full article covers the details and sources.

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Video transcript

1. 0:00Auto-lock bottoms come pre-glued. Snap lock bottoms lock by hand.
2. 0:05A snap lock, or 1-2-3, bottom has four flaps that hook together—no glue, no tape. Only the side seam is factory-glued; your packer completes the base.
3. 0:17Square the tube, flaps up. One: side flaps in. Two: back flap down. Three: seat the front tab fully. Lock before loading, then press inside to check.
4. 0:30It suits dense, small items—jars, candles, bottles, tins—at low to moderate volumes. Capacity depends on board, flap overlap and load shape; test filled samples.
5. 0:43Tuck is cheapest; crash-lock costs most to buy but least to fold. Time twenty cartons per packer, and compare labor with the pre-glued price difference.
6. 0:55Send size, weight and monthly volume to compare both quotes.

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