Socket Cap Screws & Hex Bolts

Socket Cap Screws Hex Bolts

Dependable Fasteners for the Most Extreme Scenarios

Fortify your devices with ZaGO’s self-sealing cap screws and hex bolts. Our bolts and cap screws, like our machine screws, are designed to block in/out fluids, air, and chemical contaminants. If severe vibration is an issue, ZaGO offers clients a variety of self-locking strips, pellets and patches for bolts and screws. Whatever your needs entail, ZaGO’s self-sealing socket cap screws and hex bolts will seal and secure your equipment.

ZaGO’s bolts are designed with a unique, malleable “O” ring which is fitted to each type of bolt.

The “O”ring functions as an internal and external seal, fortifying your fastener against any elements by choosing an “O” ring material compatible to your application. Our bolts are ready to use with no installation preparation, and can be reused for decades under normal conditions.

ZaGO Offers the Following Self-Sealing Socket Cap Screw & Bolts:

  • Hex Head
  • Hex Flange
  • Hex Seal Bolts
  • Slotted Hex Seal Bolts
  • Socket Cap Seal Screws
  • Button, Flat and Pan Socket Seal Screw
  • Socket Washer Seal Screw

We can provide you with standard threading, as well as work with you to determine unique threading needs, such as left-hand threads.

Make a wise investment for your company by using only the highest quality sealing screws and bolts manufactured by ZaGO. ZaGO’s pre-assembled, user friendly self-sealing bolts completely seal out external factors, all the while granting you superb fastening in metal-to-metal contact. They will work with all surface types, and in virtually all environments so you can continuously count on them. Choosing the right socket cap screw or hex bolts as well as the correct “O” ring material is crucial for the most effective performance. Our engineering department can work with you to resolve any issues you may encounter, or to enhance your current system. Please contact ZaGO for consultation in your selection process.

ZaGO E-catalogs

Sealing Screws

Switch Boots

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.

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Seal Screws Benefits

Benefits of Using ZaGO Seal Screws

  • Best Lead Times Available
  • Standard Screw Sizes always in stock
  • Variety of head styles and recesses available
  • Capabilities of meeting any sealing requirements
  • Specials are ZaGO’s Specialty

ISO 9001 Registered Firm

ISO 9001 RegisteredFirm

Product Brochure

ZaGO Product Brochure View PDF

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.