# Silver aluminum-plastic GPI screw cap, 28-400 and 33-400

> Silver aluminum-plastic screw caps for GPI 28-400 and 33-400 bottle necks, used on water, beverage, liquor and whisky bottles, with custom colors and logo.

- Category: [Caps and closures](https://www.mars-glass-factory.com/products/closures/)
- Product reference: MG-1600090987945
- MOQ: 50,000 pcs
- Neck finish: GPI 28-400 / 33-400

## Overview

GPI finishes are a standard set of neck dimensions: in 33-400, 33 is the outside thread diameter in millimeters and 400 is a shallow, single-lead thread style. Caps made to the standard fit any bottle with the same finish. This aluminum-plastic cap combines an aluminum shell with a plastic inner, and is offered for 28-400 and 33-400 necks.

The standard color is silver, with custom colors and logos available. Packing is 2,430 pcs per carton for 28-400 and 4,416 pcs per carton for 33-400. The cap is listed as non-spill and is made under an ISO 9001 quality system in Shanghai, China. The minimum order is 50,000 pcs. Send your bottle drawing to confirm fit before ordering.

## Key points

- Fits GPI 28-400 and 33-400 necks
- Aluminum shell with plastic inner
- Silver standard, custom colors
- 2,430 or 4,416 pcs per carton
- MOQ 50,000 pcs

## Specifications

| Property | Value |
| --- | --- |
| Type | Screw cap |
| Material | Aluminum-plastic |
| Neck finish | GPI 28-400, GPI 33-400 |
| Outer diameter | 30 mm, 35 mm |
| Color | Silver; custom |
| Logo | Custom logo accepted |
| Feature | Non-spill |
| Packing | 2,430 pcs/carton (28-400); 4,416 pcs/carton (33-400) |
| Certification | ISO 9001 |
| Origin | Shanghai, China |

## FAQ

**Will this cap fit my bottle?**

It fits bottles with a GPI 28-400 or 33-400 finish. Check your bottle drawing or send a sample and we will confirm.

**Is silver the only color?**

No. Silver is standard; custom colors and logos are available on request.

**What is the MOQ?**

The MOQ is 50,000 pcs.


Request a quote: https://www.mars-glass-factory.com/products/closures/aluminum-plastic-gpi-screw-cap-28-400-33-400/#inquiry or email inquiry@mars-glass-factory.com