1/2"-20 Axles | McMaster-Carr

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About Shafts

About Casters and Wheels

With Shaft Collar

Thread these shafts into a tapped hole to support idler sprockets and pulleys in tensioning applications.

Shafts with a shaft collar come with a grease fitting for easy lubrication of your pulleys and sprockets. Adjust the collar to the width of your component.

For technical drawings and 3-D models, click on a part number.

		Overall		Thread
Dia.	Lg.	Lg.	Dia.	Size	Lg.	Edge Type	Fabrication	Hardness Rating	Hardness		Each
Inch with Shaft Collar—1215 Carbon Steel
5/8"	1 1/4"	3 3/8"	1 1/8"	1/2"-20	7/8"	Chamfered	Hardened	Very Hard	Rockwell C58	00000000	000000
3/4"	2 7/16"	4 3/8"	1 1/4"	1/2"-20	7/8"	Chamfered	Hardened	Very Hard	Rockwell C58	00000000	00000

Wheel Axles

Axle

Axle with Grease Fitting

Replace worn or broken caster axles.

For technical drawings and 3-D models, click on a part number.

Axle
Dia.	Lg.	Thread Size	Thread Lg.	Includes		Each
Zinc-Plated Steel
1/2"	3 1/4"	1/2"-20	3/4"	Hex Nut	00000000	00000
Axle with Grease Fitting
Zinc-Plated Steel
1/2"	2 13/16"	1/2"-20	3/4"	Hex Nut	00000000	0000
1/2"	4"	1/2"-20	1 1/4"	Hex Nut	00000000	0000