Smooth 120-400 Straight Sided PP Cap, Continuous Thread (CT) Closure

What this packaging is

A straight-sided, smooth-exterior profile gives this 120-400 PP cap a clean, decoration-ready canvas right out of the gate. The Smooth 120-400 Straight Sided PP Cap uses continuous thread (CT) closure geometry to fit containers with a 120mm neck and 400-finish threading — a larger-format specification built for wide-mouth jars and bottles across supplements, personal care, and food applications. Vitamins, gummies, protein powder, body scrub, hair mask, and pomade are all natural fits. The smooth sidewalls support offset print, heat stamping, embossing, and digital print. Made in the USA, this polypropylene cap is available in an extensive color range to support product line differentiation.

Why brands choose this

• USA-made with a broad color range for easy differentiation: Produced domestically in Plattsburgh, NY, this cap ships with shorter lead times and no customs complexity. With colors spanning Pearl White, Black, Aqua 632, Gold 871, multiple blues and greens, and more, brand teams can align closures to SKU color-coding or seasonal ranges without sourcing from multiple vendors.
• Straight-sided geometry opens up serious decoration options: The smooth, flat sidewall is purpose-built for offset print, heat stamping, embossing, and digital print — giving brand and creative teams real flexibility to put logos, copy, or pattern work directly on the cap. That's a meaningful advantage when the closure needs to carry branding rather than disappear into the shelf presentation.
• 120-400 format covers a wide range of high-volume categories: The 120mm neck finish is the go-to spec for wide-mouth containers, and this closure crosses category lines naturally — supplements like gummies and protein powder, personal care like hair mask and pomade, and OTC products like antacids and lozenges all use this finish. For brand teams ranging products across multiple categories, consolidating on one closure spec reduces component complexity.

Decoration