UNEF Dies | McMaster-Carr

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16 Products

Dies

Rotate these dies around studs and rods to create new fastener threads. A cut above lower-quality dies that can leave inferior threads, these are machined in the U.S. to precise dimensions for accuracy and consistency.

They are adjustable, so you can cut a shallow thread that makes it easier to get the die started on the first pass. Turn the set screw to open the die to its largest diameter. Then rotate the die with a round die wrench and adjust the screw as you make additional passes to reach the proper thread size.

Uncoated High-Speed Steel—The most versatile dies stay sharp and cut cleanly, even if you use them every day. They last much longer than carbon steel dies and you won’t have to work as hard to create threads.

	Dies				Die Wrenches
			Uncoated High-Speed Steel
	Thread Size	Thread Type		Each		Each
1" OD



		12-32	UNEF	000000000	000000	00000000	00000


		1/4"-32	UNEF	000000000	00000	00000000	0000
		5/16"-32	UNEF	000000000	00000	00000000	0000
		3/8"-32	UNEF	000000000	00000	00000000	0000


		1 1/2" OD



				1/2"-28	UNEF	000000000	000000	00000000	00000


				9/16"-24	UNEF	000000000	000000	00000000	00000
				5/8"-24	UNEF	000000000	000000	00000000	00000


				2" OD



						11/16"-24	UNEF	000000000	000000	00000000	00000


						3/4"-20	UNEF	000000000	000000	00000000	00000
						13/16"-20	UNEF	000000000	000000	00000000	00000
						7/8"-20	UNEF	000000000	000000	00000000	00000
						15/16"-20	UNEF	000000000	000000	00000000	00000
						1"-20	UNEF	000000000	000000	00000000	00000