Self-Sealing Nuts Engineering

Self Sealing Nuts


Ordinary nuts and plugs lack adequate seal technology and allow external/internal pressure and contaminants to damage the integrity of the enclosure, and therefore your device. ZaGO has engineered a solution to this problem with its exclusive line of self-sealing nuts and seal plugs. We have developed a way to permanently fuse a rubber element to the threads of nuts, thereby lending the nuts excellent sealing capabilities, defense against vibration and convenient reusability. Our seal plugs have been fitted with an “O” ring in the groove underneath the head so that, when the seal plug is tightened, the “O” ring fills any space beneath the plug creating a complete seal.

ZaGO seal nuts are available with various types of sealing material suitable for sealing a wide range of contaminants and they resist most chemicals in different temperature ranges. ZaGO seal nuts can also be designed to exhibit excellent weather, ozone and UV resistance. ZaGO seal nuts are used in many types of equipment applications such as within the food industry (with our special FDA rubber formula), and many OEM specifications.

ZaGO seal nuts can solve numerous problems in applications including:

  • Seal nuts applied in graphic press machinery.
  • Oil heating equipment in the livestock/farming industry.
  • Heavy construction equipment to retain an inside diameter open to insulation for sealing purposes.
  • Many types of static sealing application where flexibility and low cost are important and exposure to severe and high temperatures is a requirement.
  • The medical industry

ZaGO seal nuts work against any surface – smooth or irregular, durable or fragile. ZaGO seal nuts are more than just a nut because of our unique bonding process which can be used on all types of rubber element material. ZaGO seal nuts will perform and function in ways that no regular piece of hardware could perform alone.

For your next project, seal it right with ZaGO!

The Results

ZaGO’s self-sealing nuts and plugs are dependably resistant against the chemical and environmental elements ordinary nuts and plugs simple don’t stand a chance against. They are user-friendly, cost-effective and environmentally sustainable solutions to any challenge you may face in the field, in the water, in the operating room, and beyond. Our Engineers are always happy to sit down and work with you as you select the best materials for your individual need. Learn more about how ZaGO can create custom-tailored self-sealing nuts and plugs to meet all of your specifications by contacting us today.

ZaGO’s manufacturing process is not only the most advanced of its kind, but it is also highly sustainable. Please contact ZaGO to learn more about our seal nut engineering process and to determine which materials are optimal for you application. Our expertise in manufacturing seal nuts, coupled with our outstanding inventory and equipment means that we can customize seal nuts to fit your every specification.

ZaGO sealing products are available in a wide range of screw materials as well as “o” ring material options.

Free Sample Products

Leverage this unique opportunity to experience ZaGO’s products at no cost.

Made in USA

Manufactured In The USA
ISO Registered Firm

ZaGO News

Subscribe to our email list and stay up-to-date with all our newest products and sealing solutions.

By submitting this form, you are consenting to receive marketing emails from: . You can revoke your consent to receive emails at any time by using the SafeUnsubscribe® link, found at the bottom of every email. Emails are serviced by Constant Contact

The ZaGO Advantage


Proudly Manufactured in the U.S.A

ZaGO manufactures its products in its state-of-the-art facility in Newark, New Jersey, using the finest possible materials. Every step of the manufacturing process is conducted by our local team, giving us the advantage in rapid production and coordination. We’re also listed with NJ Biz as one of New Jersey’s top manufacturing employers.


Prompt Delivery Worldwide

Because of our central location, we can make daily, timely deliveries throughout North America, South America, Europe, and Asia. Our ability to quickly create prototypes, implement adjustments, and begin production means that we have exceptionally short lead times.


Compatible with All Environments

Whatever hazards you face, ZaGO has a sealing solution. Torrential rains, oil intrusions, freezing temperatures or sandstorms–you name it. Our durable products were designed to withstand the most rugged environments, meaning that you can use our fasteners, boots, and crystal seals in virtually any kind of application.


Reusable and Convenient

ZaGO’s products are simply easy to use. We took messy solvents and complex installation and maintenance out of the equation. What you’re left with are one-piece, reusable products that are remarkably quick to install.


Customizable Features

You can customize all the essential features of your products here at ZaGO–from the materials to the colors. As a result of our extensive inventory, advanced equipment, and expert technicians, we offer clients custom-tailored products fitted according to their exact specifications.