Hollow Threaded Studs | McMaster-Carr

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9 Products

Hollow Thread-Mount Studs

Use the hollow center in these studs as an axle, vent, or passageway for wiring. Thread length is the same on both ends.

18-8 Stainless Steel—The choice for wet and outdoor environments, these studs resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

	Tensile Strength	Hardness		Each
18-8 Stainless Steel







	1/4"-20

	4"	1 1/2"	1/8"	Not Rated	Rockwell B83	94624A121	000000


	8"	2 3/4"	1/8"	Not Rated	Rockwell B83	94624A122	00000




			5/16"-18

			4"	1 1/2"	3/16"	Not Rated	Rockwell B83	94624A123	00000


			8"	2 3/4"	3/16"	Not Rated	Rockwell B83	94624A124	00000




					3/8"-16

					4"	1 1/2"	7/32"	Not Rated	Rockwell B83	94624A125	00000


					8"	2 3/4"	7/32"	Not Rated	Rockwell B83	94624A126	00000




							1/2"-13

							4"	1 1/2"	11/32"	Not Rated	Rockwell B83	94624A127	00000


							8"	2 3/4"	11/32"	Not Rated	Rockwell B83	94624A128	00000

Strut Channel Nuts with Hollow Stud

Mount and route with the same nut. Pass wiring through the hollow threaded stud to connect to electrical components installed on strut channel.

Zinc-Plated Aluminum—The zinc plating adds an extra layer of corrosion and oxide resistance to the aluminum. It also helps prevent damage caused by galvanic corrosion when used with steel strut channel.

	Thread		For Channel
	Type	Lg.	Ht.	Wd.		Each
Zinc-Plated Aluminum



		NPT	1 1/8"	13/16", 1 5/8", 2 7/16", 3 1/4"	1 5/8"	6218N11	000000