Change thread sizes or types, such as fine to coarse threads, on parts without changing gender.

In addition to joining male- and female-threaded parts, these adapters can increase or decrease metric thread sizes and change the thread pitch.

Need to join two female-threaded parts, such as coupling nuts, with dissimilar inch thread sizes? Attach them to these adapters and tighten the exterior hex nut for a secure connection.

Twist these adapters onto female metric threads to change pitch or switch thread sizes.

One side inch, one side metric, and a hex in the middle—these handy fasteners connect two female-threaded parts, such as coupling nuts, adapting from inch threads to metric. Tighten with a standard wrench.

Join two female-threaded parts of various thread types and sizes, while allowing air, liquids, wire, or other thin materials to pass through.

Connect two differently sized male-threaded parts, such as threaded rods, and tighten with a standard wrench.

Increase or decrease metric thread size from one male-threaded part to another. Commonly used to connect two differently sized threaded rods, they have a hex-shaped body, so you can tighten them with a standard wrench.

A black-phosphate finish provides mild corrosion resistance.

These inserts are the most corrosion-resistant thread-locking inserts we offer.

Adhesive on both the internal and external threads keeps these inserts in place and holds screws tight.

Made of 18-8 stainless steel, these inserts have good corrosion resistance.

These inserts are made to stringent military specifications.

Use these fittings in extreme-pressure conditions up to 15,000 psi.

Unlike other stainless steel fittings, these are made in the U.S.A. for superior quality. As another marker of quality, they come with a certificate with a traceable lot number and test report that guarantees material composition.

Typically used with low-pressure stainless steel threaded pipe fittings.

Choose these fittings when you want the same high-quality found in our low-pressure pipe fittings, but need more strength to handle higher pressures.

Typically used with medium- to high-pressure stainless steel threaded pipe fittings.

Also known as Code 61 SAE hydraulic flanges.

These brass fittings have the strength to handle high-pressure applications.

Not only do these brass fittings have the strength to handle high-pressure applications, the male threads have a sealant applied for extra protection against leaks.

Use these heavy-duty brass fittings for high-pressure drinking water applications.

The plating on these brass fittings creates a shiny finish and provides extra protection in corrosive environments. Fittings have the strength to handle high-pressure applications.

When space in your pipe line is limited, choose these miniature fittings that are one inch or less in length.

Plated with nickel, these brass fittings resist rust better than steel and unfinished brass fittings. Select them when you need more strength in corrosive environments to handle higher pressures than our low-pressure fittings.

Typically used with medium-pressure brass and bronze threaded pipe fittings.

Typically used with low-pressure brass and bronze threaded pipe fittings.

Typically used with low-pressure brass and bronze threaded pipe fittings.

Less than an inch in length, these miniature fittings work well in low-pressure pipe lines that are tight on space.

Typically used with low-pressure brass and bronze threaded pipe fittings.

Typically used with precision extreme-pressure brass and bronze threaded pipe fittings.

These fittings are strong enough to handle extreme pressures, yet small enough to fit into cramped spaces.

The strongest steel fittings we offer, these can withstand extreme-pressure applications.

Use these fittings for low-pressure applications in noncorrosive environments.

Pipe has clockwise (right-hand) threads on one end and counterclockwise (left-hand) threads on the other end. When you use a wrench to turn, connections on both ends tighten at the same time.

These flanges are for low-pressure applications in noncorrosive environments.

The male threads on these fittings have a sealant applied for extra leak protection.

Made of galvanized steel, this Schedule 40 pipe has fair corrosion resistance and is designed for low-pressure applications.

Assortments contain threaded pipe in various lengths.

Use these unions to connect different metals in a piping or plumbing system. They have a gasket with a plastic sleeve that inhibits destructive corrosion.

Typically used with medium-pressure galvanized iron and steel threaded pipe fittings. Also known as Schedule 80.

Typically used with medium-pressure iron and steel threaded pipe fittings. Also known as Schedule 80.