Die Nuts | McMaster-Carr

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809 Products

External Threading

Thread Repairing Dies

Restore rusted and damaged screw threads. These dies are hex shaped for use with conventional wrenches.

Thread Repairing Dies for Tight Spots

A smaller width than standard hex dies lets you repair threads in tight spaces.

Left-Hand Thread Repairing Dies

Repair rusted and damaged left-hand screw threads. These dies are hex shaped for use with conventional wrenches.

Two-Piece Thread Repairing Dies

Clamp these dies around your workpiece, so you can start thread repair anywhere along the length of a bolt, stud, or rod. They're hex shaped for use with conventional wrenches.

Left-Hand Thread Repairing Dies for Tight Spots

With a smaller width than regular hex dies, these dies are suitable for repairing rusted and damaged left-hand threads in tight spaces.

Pipe and Conduit Thread Repairing Dies

Renew rusted and damaged pipe and conduit threads.

Acme Thread Repairing Dies

Repair the broad, square threads on Acme threaded studs and rods. These dies are for general purpose Acme threads with a Class 2G thread fit.

Bearing-Locknut Shaft Thread Repairing Dies

Clean and restore the fine threads on power transmission shafts that are used with bearing locknuts. Dies are sized according to the American Bearing Manufacturer's Association (ABMA).

Screw Thread Dies

Use these dies to create external threads on bolts, studs, and rods.

Left-Hand Screw Thread Dies

Cut left-hand external threads on bolts, studs, and rods.

Pipe and Conduit Thread Dies

Create external pipe and conduit threads.

Wrenches for Round Dies

Also known as die stocks, these wrenches grip round dies so you can turn them by hand.

Wrenches for Hex Dies

Use these wrenches to turn hex-shaped dies by hand. They're also known as die stocks.

Round Die to Hex Die Adapters

Convert round dies to hex dies for use with a conventional wrench.

Threading Sets

Tap and Die Sets

Use a single set for many sizes of internal and external threads. All sets include tap and die wrenches.

Tap, Die, and Drill Bit Sets

Cut and repair threads and drill holes in many different sizes. Tap and die wrenches are included.

Thread Repairing Tap, Die, and File Sets

Repair screw threads in a wide range of sizes.

Tap and Die Wrench Sets

Switch from internal to external threading with interchangeable tap and die adapters. Use them with the included ratcheting wrench.

Thread Repairing Die Sets

Repair rusted or damaged external threads in a variety of sizes.

Two-Piece Thread Repairing Die Sets

Clamp these dies around your workpiece, so you can start thread repair anywhere along the length of a bolt, stud, or rod.

Thread Repairing Die and File Sets for Tight Spots

Renew external threads in a wide range of sizes. The dies in these sets have a narrower width than standard dies, making them a good choice for thread repair in tight spots.

Die Sets

Cut several sizes of external screw threads.