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What is a 28 410 bottle neck?

Jun. 10, 2025

The 28-410 bottle neck refers to a specific bottle cap system. "28" indicates the neck diameter (28 millimeters), while "410" represents the thread design used to secure the cap.

  • "28": The outer diameter of the bottle thread (measured in millimeters), known as the "T dimension." This dimension measures the widest point of the threaded portion of the bottle neck.
  • "410": A thread type code that indicates 1.5 turns of continuous threads at the neck. This design balances sealing performance and ease of opening for users.

28 410 aluminum bottle cap

28 Millimeter Diameter (28)

This means the outer diameter of the bottle neck is 28 millimeters. This size is commonly used for various types of bottles, such as those for beverages, personal care products, and cleaning supplies.

410 Thread (410)

"410" indicates the thread type on the bottle neck. It is a continuous thread system characterized by sharp-edged, square-shaped threads that ensure a tight fit between the bottle and the cap.

This design is widely used for screw-on bottle caps, especially in industries such as cosmetics, pharmaceuticals, food, and beverages.

It also features tamper-evident functionality, meaning that if the cap is opened or tampered with, visible signs will be left on the cap.

28 410 Bottle Cap Key Dimensions

The 28-410 neck adheres to standardized measurements critical for compatibility:

  • T Dimension: 28 mm (thread outer diameter) .
  • E Dimension: Outer neck diameter (excluding threads), used to calculate thread depth .
  • H Dimension: Neck height (typically 7–10 mm), measured from the top to where the thread meets the bottle shoulder .
  • S Dimension: Distance from the top of the neck to the first thread (ensures proper cap orientation) .
  • I Dimension: Inner neck diameter (critical for filling tubes and seal fitments) .

Table: Standard 28-410 Dimensions

Dimension Description Typical Value
T Thread outer diameter 28 mm
H Neck height 7–10 mm
Threads Turns 1.5
I Inner diameter ~20–22 mm

28 410 Bottle Cap Applications

Commonly used in the packaging of cosmetics, pharmaceuticals, beverages, cleaning products, and personal care items.

Used for packaging shampoo, liquid soap, lotion, sauces, condiments, vitamins, etc.

Bottle types: Mainly used for medium-capacity containers (8–32 ounces), with bottle shapes including Boston Round, Cylinder, and Modern Round.

Industries:

  • Food & Beverage: Syrups, sauces, and condiments (compatible with syrup pumps for controlled dispensing).
  • Cosmetics/Pharmaceuticals: Lotions, serums, and liquid supplements.
  • Household Chemicals: Cleaners and detergents (commonly used with trigger sprayers).
  • Materials: Commonly used with PET plastic bottles (most common), glass bottles, and aluminum bottles.

28 410 Bottle Cap Compatibility

The 28-410 system typically uses screw-on caps with matching internal threads. These caps come in various designs such as flip tops, nozzle caps, or pumps, depending on product requirements.

Advantages of 28 410 Bottle Caps

  • Secure Seal: Provides reliable sealing to prevent leakage.
  • User-Friendly: Screw-on design allows easy handling, enabling consumers to open and close the bottle effortlessly.
  • Customizable: Caps can be made in different materials, colors, and functions (e.g., child-resistant caps or tamper-evident bands).

28 410 Bottle Cap Materials

The neck and closure can be made from a variety of materials such as High-Density Polyethylene (HDPE), Polyethylene Terephthalate (PET), or Polypropylene (PP), depending on product requirements.

Common Variants

  • 28-400: Slightly smaller thread size, typically used in similar applications that require a 28 mm diameter but a different thread configuration.
  • 28-415: Slightly taller thread profile for improved sealing performance.

28 410 Bottle Cap Thread Design and Function

  • Continuous Thread (CT): The spiral thread wraps around the neck without interruption, allowing smooth cap tightening.
  • 1.5 Turns (Type 410): Requires a 540-degree rotation to fully tighten the cap, achieving a leak-proof seal effortlessly.
  • Compatibility: Due to the precise match in pitch and diameter, it is only compatible with 28-410 caps (e.g., continuous thread caps, trigger sprayers, syrup pumps).

28 410 Bottle Cap Sealing Mechanisms

  • Liner Seal: An aluminum foil or EPE liner inside the cap compresses against the bottle mouth to form an airtight barrier.
  • Plug Seal: Caps with an inner plug insert into the inner diameter of the neck ("I" dimension) for sealing viscous products like honey.
  • Tamper-Evident: Often integrated with a breakaway ring for tamper evidence (e.g., DBJ closure).

28 410 Bottle Cap Compatibility Considerations

Cap Fit: The cap must match both the 28 mm diameter and 410 thread type. A 28-400 cap (single-turn thread) will not seal properly. Tolerances: Variations in material manufacturing (e.g., plastic shrinkage) may affect sealing. It is recommended to conduct rigorous testing with actual caps and bottles. Closure Options: Include disc caps, flip tops, pumps, and child-resistant closures (CRC).

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