McMaster-Carr

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.

Shafts

Threaded Linear Motion Shafts

Mount these externally threaded shafts into tapped holes rather than using a shaft support, or attach a hex nut, shaft collar, or other threaded accessory.

Tapped Linear Motion Shafts

Internal threads allow you to mount these shafts onto threaded studs and fasteners, no shaft supports needed.

Threaded Rotary Shafts

Attach threaded accessories, such as mixer propellers and fan blades, to the end of these shafts.

Tapped Rotary Shafts

Connect these internally threaded shafts directly to threaded components, or use a fastener to secure.

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About Shafts

Female Thread Adapters

Inch-to-Inch FemaleHex Thread Adapters

Inch-to-Metric FemaleHex Thread Adapters

Shafts

Threaded Linear Motion Shafts

Tapped Linear Motion Shafts

Threaded Rotary Shafts

Tapped Rotary Shafts

Inch-to-Inch Female
Hex Thread Adapters

Inch-to-Metric Female
Hex Thread Adapters