Ribbed 38-400 Straight Sided Flat Child Resistant Threaded Closure

What this packaging is

Child-resistant protection with a ribbed grip you can actually feel — the MRP Solutions Ribbed 38-400 PP Threaded Closure is built for demanding household and wellness applications. This flat-top, straight-sided polypropylene cap fits standard 38-400 neck finish containers and meets child-resistant requirements for surface cleaners, bleach, washes, vitamins, pills, and gummies. Made in the USA for faster turnarounds and simpler domestic sourcing, it's available in 15 stocked colors — from white and black to aqua, purple, and gold — giving brand teams real flexibility on shelf identity. PCR content is available for brands with sustainability commitments. For household chemical or supplement lines that need safety compliance without sacrificing brand presence, this closure delivers both.

Why brands choose this

• Made in the USA with 15 color options ready: Domestic manufacturing means shorter lead times and no customs friction — and with 15 in-stock colors including neutrals, brights, and metallics, brand teams can match or differentiate across SKUs without custom tooling delays.
• Built for child-resistant compliance across two major categories: The 38-400 CR threading meets safety requirements for household chemicals like bleach and surface cleaners as well as OTC wellness products like vitamins, gummies, and pills — giving multi-category brand teams a single closure solution that spans regulated end uses.
• Available with PCR content for brands reducing virgin plastic: For brands with material sustainability targets, this PP closure can be sourced with recycled content, supporting a reduce story without changing the functional spec or consumer-facing appearance of the finished package.

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