Calaso Smooth 33-400 Straight Sided Flat Threaded Closure

What this packaging is

A 33-400 neck finish is one of the most widely used thread specs in beauty and personal care — and this PP closure from Calaso is built to meet it cleanly. The Smooth 33-400 Straight Sided Flat Threaded Closure delivers a glossy, flat-top profile that reads polished on shelf without overcomplicating your pack design. It works across a broad range of end uses: lip care, eye care, face moisturizers, body scrubs, hair treatments, body lotions, and even vitamins and supplements. Made-to-order with an MOQ of just 50 units, it's genuinely accessible for emerging brands testing new SKUs or running small-batch launches.

Why brands choose this

• Remarkably low MOQ for a custom closure: At a minimum of just 50 units, this is a rare entry point for a made-to-order closure — ideal for indie brands testing new formulas, limited-edition runs, or agencies developing prototype packaging before committing to larger production volumes.
• One closure, eight end-use categories: Designed to fit the widely standardized 33-400 neck finish, this closure is a practical workhorse across lip, eye, face, body, hair, and supplement applications — giving multi-SKU brands a single component solution that simplifies sourcing and vendor management.
• Clean, glossy profile that works across price tiers: The flat-top, straight-sided silhouette gives formulas room to breathe visually, whether you're going minimal luxury or mass-market clean beauty. The glossy PP finish holds up well under labels, hot stamp, and screen print decoration, keeping your branding options open.

Finishes