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

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.

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

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.

Often called sleeve nuts, these thread adapters fasten parts with right-hand threads to parts with left-hand threads.

A black-phosphate finish provides mild corrosion resistance.

These assortments include various sizes of thread-locking inserts.

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.

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

With a slim base and a short barrel, these weld nuts fit in tight spaces, such as channels, and in low-clearance areas.

Projections on the base concentrate the weld and create space for heat to dissipate, protecting the threads on these steel weld nuts from deforming.

An offset barrel allows you to position threads near edges and corners.

To protect their threads from deforming, these steel nuts have a projection that concentrates your weld and creates room for heat to dissipate. An offset barrel lets you position threads near the edges and corners of uncoated steel sheets.

Add corrosion-resistant threads to stainless steel sheets, even in spaces with low clearance.