Installation And Torque

Seating Torque With respect to installation and torque, there are three important design calculations and they are as follows:
  1. Percent Squeeze – giving standard torque installation (see Table)
  2. Compression/Stretch percent
  3. Groove Volume
Since there are wide ranges of sealing applications, more calculations may be required. If you are using standard sealing applications, then the calculations have already been done: (See tables 2 & 3) On the other hand, if the application is unique, then these calculations will need to be tabulated. IMPORTANT: Calculations must be as accurate as possible to avoid an end result of leakage.
(#4) 112 – 40 UNC – 2A 5
(#6) 138 – 32 UNC – 2A 9
(#8) 164 – 32 UNC – 2A 20
(#10) 190 – 32 UNF – 2A 23
(#10) 190 – 24 UNC – 2A 23
(#1/4) 250 – 20 UNC – 2A 75
(#5/16) 312 – 18 UNC – 2A 142
(#3/8) 375 – 16 UNC – 2A 263
Please note that the above values are recommended average values only. Variations in local conditions and the material may require significant deviations from these recommended values.

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

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Made in USA

Manufactured In The USA
ISO Registered Firm

Sealing Screw Materials

We use a combination of the following materials for the metal component of the screws:
  • Stainless Steel
  • Steel
  • Aluminum
  • Copper
  • Brass
  • Monel
  • Austenitic
  • Titanium

“O” Ring Materials

ZaGO offers the following materials for the “O” rings, which come in durometer ranges from 60-70 hardness depending on the chosen material:
  • EPDM
  • Buna
  • Neoprene
  • Silicone
  • Fluorosiliconme
  • Viton
  • Mil Spec “O”-ring materials
Other materials are available upon request

Restriction of Hazardous Substance

Restriction of Hazardous Substance is a directive that was instituted by the European Union which states that as of July 1, 2006 all new electrical and electronic equipment must not contain certain restricted materials. ZaGO is a RoHS compliant company that strives to make every effort to accommodate its customers’ needs for all the necessary paperwork to demonstrate compliance. ZaGO also understands that the requirements are continually evolving and that paperwork needs may change in the future. ZaGO is committed to ensuring that our customers have the most up-to-the-minute information and documentation.

The Defense Federal Acquisition Regulation Supplement

DFARS (The Defense Federal Acquisition Regulation Supplement, DFARS Clause 252.225.7014, Preference for Domestic Special Metals) ZaGO Manufacturing Company, Inc. is capable of supplying self-sealing fasteners fabricated with specialty metals which are fully compliant with DFARS Clause 252.225-7014.

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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.