Manufactured in America

Benefits of Working with an American Manufacturer

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Since 1947, APM Hexseal has been a leading provider of top-quality internal and external sealing solutions for various industries and applications. We proudly manufacture all of our sealing solutions in our New Jersey manufacturing facility. While many companies have moved their manufacturing operations overseas in an effort to find cheaper labor and production costs, we […]

How to Choose the Right Sealing Boot for Your Next Project

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Mechanical and electrical controls such as control panels, circuit breakers, and switches can malfunction if not sealed properly and components are left vulnerable to harmful contaminants. Sealing boots function to guard those controls against various contaminants such as grease, cleaning solvents, sand, lubricants, liquids, saltwater, dust, and dirt. They are tough, flexible molded rubber devices […]

Green Manufacturing With APM Hexseal’s Products

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Manufacturing is one of the most critical sectors in the United States’ economy. It touches almost every facet of the business sector, from retail to transportation to construction. Although this field is crucial to the United States, historically, manufacturing has negatively impacted the environment due to the toxic gasses and chemicals released into the air. […]

Is a Gasket the Same as a Washer?

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APM Hexseal is a leading provider of durable high-quality sealing hardware, including custom-molded gaskets and washers. Gaskets and washers are often assumed to be the same thing, as they have a similar design and are both used in conjunction with other components. While they have a similar appearance, they serve very different purposes. Gasket vs. […]

APM Hexseal Seeloc Washe

The Purpose of Washers & Why They’re Used With Fasteners

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A washer is a mechanical component that consists of a circular flattened metal, plastic, or rubber disk with a hole through the middle. Washers are typically used with fasteners such as screws and bolts to distribute the load of the fastener, prevent damage to sensitive surface materials, and reduce the potential for leaks. Are washers […]

Metal Roof Leak

Common Causes of Metal Roof Leaks

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Metal roof leaks are not unusual, but they can be extremely costly. Undetected and unchecked, a leak can allow moisture to collect on roof supports, interior walls and ceilings, and even structural supports that keep the building standing. Over time, moisture can cause these building components to rust or rot. Standing water in the building […]

APM Hexseal Seelskrews & Seelbolts

How a Self-Sealing Screw Works

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Founded in 1947, APM Hexseal has provided environmental sealing solutions for over 70 years. We offer a wide range of innovative sealing products for use in industrial and commercial applications. Unlike traditional fasteners, they serve a dual purpose: joining components together and sealing contaminants in/out.  One of our core offerings is self-sealing screws. In this […]

Assorted O Rings

A Guide to O-Ring Material Selection

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O-rings play a vital role in sealing fasteners. Sealing fasteners are hardware devices (e.g., sealing bolts, sealing screws, and sealing nuts) used to mechanically join two or more components together. They also form seals at the fastening point that prevent unwanted ingress or egress of materials. They have built-in O-rings, which create a tight hermetic […]

Sealing Fasteners

Guide to Sealing Fasteners

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Fasteners such as screws, bolts, nuts, and nails provide connections for critical components and disparate substrates across industries. Sealing fasteners go a step further by tightly sealing against the substrate, making them particularly for high-value and high-intensity situations. Today, we want to take a closer look at sealing fasteners – what they are, how they […]

Fastener Innovation Award

Nutzilla Wins Fastener Innovation Award

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People are going nuts for our new “Nutzilla” product! The largest Seelnut® in our portfolio has shown users across industries that sometimes bigger really is better.  If you need large, self-sealing nuts in your application, Nutzilla is the product for you. After all, these puppies are the size of…well, puppies! Nutzilla Product Design Nutzilla benefits […]