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Metric Hexagon Sealing Nuts.

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Metric Hexagon Sealing Nuts

What are Metric Hexagon Sealing Nuts?

Unlike ordinary nuts, which lack adequate sealing capability to prevent contaminants and toxins from entering the environment, Hexagon Sealing Nuts are designed to maintain the integrity of enclosures with a 360° seal.

Zago Seal Nuts feature Military Standard O Ring technology and are capable of withstanding extreme temperature conditions and atmospheres. Even the most sensitive equipment is protected from hazardous substances thanks to these fasteners forming a leak-proof, air-tight seal.

Hexagon Sealing Nuts are reusable and compatible with all surface types. They are supplied ready to use, with no assembly required. This fastener is fitted with a captive rubber O Ring providing a more user friendly, cost effective and better seal than using a conventional Hexagon Nut with a separate O Ring.

Accu also lists ZAGO Hexagon Sealing Bolts in our standard range, along with Serrated Flanged Sealing Nuts, suitable for applications requiring increased anti-vibration properties.


Accu’s range of Hex Sealing Nuts are manufactured from 304 Stainless Steel, otherwise known as A2 Stainless Steel.

O Ring materials available include Buna, Fluorosilicone and Viton (Fluorocarbon) as standard. For alternative Nut and O Ring materials, please reach out to us.


Manufactured to the DIN 934 standard, Accu’s range of Hexagon Sealing Nuts are available in metric thread sizes M2 to M16, making them suitable for a wide range of applications across multiple industries, including Robotics, Drones & Electronics and Enclosures.

Bespoke Metric Hexagon Sealing Nuts Manufacture.

High precision, bespoke manufacture of Metric Hexagon Sealing Nuts to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.

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