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

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

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.

Adapt threaded rods from inch to metric. These adapters connect two male-threaded fasteners, so you can change the gender of a mating part or increase or decrease its thread size. The hex-shaped body fits into the head of a standard wrench.

Made of 18-8 stainless steel, these inserts have better corrosion resistance than black-phosphate steel.

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

A black-phosphate finish provides mild corrosion resistance.

Forming the strongest hold of any of our threaded inserts, these inserts have a distorted internal thread to lock screws into place and keys that drive into surrounding material to prevent slipping and rotating.

Use these metric nuts in channels and tight spaces where round-base weld nuts won't fit.

Weld these nuts to uncoated steel surfaces.

You can weld these metric nuts to flat and uneven uncoated stainless steel surfaces for a strong permanent hold.

Weld these metric nuts to flat and uneven uncoated steel surfaces for a strong permanent hold.

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

Used in low-pressure pipe lines, these brass fittings have a plating that makes them shiny and improves corrosion resistance.

Their small size makes these miniature fittings a good choice for cramped, confined spaces.

A built-in shut-off valve stops airflow when the fittings are disconnected from tubing.

Made of brass, these fittings have good corrosion resistance.

These fittings won’t absorb moisture, so they’re good for water and high-humidity air applications.

Withstanding temperatures up to 300° F, these fittings have the highest temperature rating of all our push-to-connect tube fittings for air and water.

Aluminum fittings have good corrosion resistance, but are lighter in weight than brass.

Made of stainless steel, these fittings have better corrosion resistance than brass fittings.

Minimize leaks in your line—these fittings have a single barb that creates a smooth clamping surface for extra-tight connections.

These brass couplings have good corrosion resistance.