GPI 28-400 and 33-400 aluminum-plastic caps

Aluminum-plastic screw caps for GPI 28-400 and 33-400 bottle finishes, used on vodka, gin and whisky bottles, with custom color and logo.

Minimum order: 50,000 pcs
Neck finish: GPI 28-400 / 33-400
Type: Aluminum-plastic cap
Reference price: $0.05-0.06 / pc

Reference FOB price per piece for plain stock items (2026-10). Your quote depends on quantity, decoration and packing.

Quantity (pcs)MOQ 50,000 pcs

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Overview

These screw caps combine an aluminum shell with a plastic inner and fit GPI 28-400 and 33-400 neck finishes. In the GPI system, the first number is the neck diameter in millimeters and 400 indicates a shallow single-turn thread. Both are common finishes on spirits, sauce and food bottles.

The caps are used on vodka, gin, whisky and other spirits bottles. Cap color is customized and your logo can be added. Packing is 2,430 pcs per carton for the 28-400 size and 4,416 pcs per carton for the 33-400 size. Supply ability is 100,000 pcs per day and goods ship from the Port of Shanghai. Production is ISO 9001 certified and the minimum order is 50,000 pcs.

Typical uses

Vodka and gin bottles
Whisky bottles
Liqueurs
Sauce and condiment bottles

Key points

Fits GPI 28-400 and 33-400 finishes
Aluminum shell with plastic inner
Custom color and logo
Up to 100,000 pcs per day
ISO 9001 certified production

Specifications

From the factory listing. Final dimensions, weight and tolerances are confirmed on the drawing sent with your quote.

Packing

2,430 pcs per carton (28-400); 4,416 pcs per carton (33-400)

Certification listed

ISO 9001

Specifications of GPI 28-400 and 33-400 aluminum-plastic caps
Type	Screw cap
Material	Aluminum-plastic
Finish	GPI 28-400, 33-400
Outer size	30 / 35 mm
Feature	Non-spill
Color	Custom
Logo	Custom logo accepted
Certification	ISO 9001
Packing	2,430 pcs/carton (28-400); 4,416 pcs/carton (33-400)
Supply ability	100,000 pcs per day
Port	Shanghai
MOQ	50,000 pcs
Origin	Shanghai, China

Questions about this item

Which neck finishes do these caps fit?

They fit GPI 28-400 and 33-400 finishes. Send a bottle sample or drawing and we confirm fit.

What is the MOQ?

The minimum order is 50,000 pcs per order.

Can we have a custom color and logo?

Yes. Cap color and logo are made to your specification and confirmed with your quote.

Request a quote

For GPI 28-400 and 33-400 aluminum-plastic caps. Tell us the quantity, decoration and destination; we reply with price, MOQ, lead time and sample options.