Furnace Fixtures | McMaster-Carr

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41 Products

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications, from mounting I-beams to suspending light fixtures.

Carbon Fiber

Ultra-High-Temperature Carbon Fiber—Unlike metal rods, these won't warp in extreme temperatures, making them suitable for furnace fixtures and other heat-treating applications. Not for use in oxidizing environments.

	Color		Each
Ultra-High-Temperature Carbon Fiber







	1/4"-20

	3 ft.	3,990	Durometer 75D	Black	000000000	0000000




			5/16"-18

			3 ft.	3,990	Durometer 75D	Black	000000000	000000




					3/8"-16

					3 ft.	3,990	Durometer 75D	Black	000000000	000000




							1/2"-13

							3 ft.	3,990	Durometer 75D	Black	000000000	000000




									M6 × 1 mm

									1 m	3,990	Durometer 75D	Black	000000000	000000




											M8 × 1.25 mm

											1 m	3,990	Durometer 75D	Black	000000000	000000

Ultra-High-Temperature Carbon Fiber Square Nuts

Unlike metal nuts, these carbon fiber square nuts won’t warp at extreme temperatures, making them ideal for heat treating and furnace fixtures. They are lightweight with an excellent strength-to-weight ratio and can be used for storage racks and shelving. Large flat sides make these nuts easy to grip with a wrench and keep them from rotating in channels and square holes. Not for use in oxidizing environments.

	Wd.	Ht.	Tensile Strength, psi	Max. Temp., ° F		Each
Carbon Fiber



	1/4"-20	1/2"	1/4"	17,000	3,990	000000000	00000


	5/16"-18	5/8"	1/4"	17,000	3,990	000000000	0000
	3/8"-16	3/4"	13/32"	17,000	3,990	000000000	00000
	1/2"-13	1"	1/2"	17,000	3,990	000000000	00000
	M6 × 1 mm	1/2"	1/4"	17,000	3,990	000000000	0000
	M8 × 1.25 mm	1/2"	1/4"	17,000	3,990	000000000	00000

High-Strength Lightweight Carbon Fiber U-Channels

Often used to make railings, edge covers, and other structural framing parts, these carbon fiber U-channels add stiffness and strength to applications without adding a lot of weight. They’re similar in strength to 6061 aluminum yet lighter in weight. With a plain weave and 0°/90° construction layup, all are easy to machine. They won’t splinter when cut.

	Outside				Inside									36" Long		74" Long
	Wd.	Wd. Tolerance	Ht.	Ht. Tolerance	Wd.	Ht.	Color	Tensile Strength	Fiber Tensile Stiffness	Max. Temp., ° F	Impact Strength	Hardness	For Use Outdoors		Each		Each
Checked Glossy U-Channels







				0.05" Thick Wall (-0.06" to 0.06")

				2 1/8"	-0.125" to 0.125"	1"	-0.126" to 0.126"	2"	0.945"	Black	103,000 psi (Excellent)	33 msi to 36 msi (Standard)	275	Not Rated	Not Rated	No	00000000	0000000	00000000	0000000


				2 1/8"	-0.125" to 0.125"	1 1/4"	-0.128" to 0.128"	2"	1.195"	Black	103,000 psi (Excellent)	33 msi to 36 msi (Standard)	275	Not Rated	Not Rated	No	00000000	000000	00000000	000000
				2 1/8"	-0.125" to 0.125"	1 1/2"	-0.132" to 0.132"	2"	1.445"	Black	103,000 psi (Excellent)	33 msi to 36 msi (Standard)	275	Not Rated	Not Rated	No	00000000	000000	00000000	000000
				3 1/8"	-0.125" to 0.125"	1 1/2"	-0.132" to 0.132"	3"	1.445"	Black	103,000 psi (Excellent)	33 msi to 36 msi (Standard)	275	Not Rated	Not Rated	No	00000000	000000	00000000	000000
				3 1/8"	-0.125" to 0.125"	1 3/4"	-0.134" to 0.134"	3"	1.695"	Black	103,000 psi (Excellent)	33 msi to 36 msi (Standard)	275	Not Rated	Not Rated	No	00000000	000000	00000000	000000




						0.06" Thick Wall (-0.06" to 0.06")

						4 1/8"	-0.125" to 0.125"	2"	-0.136" to 0.136"	4"	1.935"	Black	103,000 psi (Excellent)	33 msi to 36 msi (Standard)	275	Not Rated	Not Rated	No	00000000	000000	00000000	000000


						4 1/8"	-0.125" to 0.125"	2 1/4"	-0.138" to 0.138"	4"	2.185"	Black	103,000 psi (Excellent)	33 msi to 36 msi (Standard)	275	Not Rated	Not Rated	No	00000000	000000	00000000	000000

High-Strength Lightweight Carbon Fiber 90° Angles


Round Inside Corner	Square Inside Corner

Lighter than aluminum while remaining rigid, these angles are often used as brackets in structural framing, machinery, and robotics. Known for its use in the aerospace industry, carbon fiber offers a good balance of weight and strength. These angles reduce wear and stress on motorized parts because they are lightweight, extending the life of machinery.

They are made from layers of woven fabric that prevent fibers from splintering when cut. This checked carbon fiber is easy to machine and has a classic carbon fiber-look.

	Outside				Inside								12" Long		36" Long		6 ft. Long
	Wd.	Wd. Tolerance	Ht.	Ht. Tolerance	Ht.	Wd.	Color	Tensile Strength	Fiber Tensile Stiffness	Max. Temp., ° F	Impact Strength	Hardness		Each		Each		Each
Round Inside Corner







				0.065" Thick Wall (-0.06" to 0.06")

				1"	-0.125" to 0.125"	1"	-0.125" to 0.125"	0.935"	0.935"	Black	87,000 psi (Excellent)	33 msi to 36 msi (Standard)	185	Not Rated	Not Rated	00000000	000000	00000000	0000000	00000000	0000000


				3"	-0.125" to 0.125"	3"	-0.125" to 0.125"	2.935"	2.935"	Black	170,000 psi (Excellent)	33 msi to 36 msi (Standard)	185	Not Rated	Not Rated	00000000	000000	00000000	000000	00000000	000000




						0.13" Thick Wall (-0.06" to 0.06")

						1"	-0.125" to 0.125"	1"	-0.125" to 0.125"	0.87"	0.87"	Black	87,000 psi (Excellent)	33 msi to 36 msi (Standard)	185	Not Rated	Not Rated	00000000	000000	00000000	000000	00000000	000000


						3"	-0.125" to 0.125"	3"	-0.125" to 0.125"	2.87"	2.87"	Black	170,000 psi (Excellent)	33 msi to 36 msi (Standard)	185	Not Rated	Not Rated	00000000	000000	00000000	000000	00000000	00000000


						Square Inside Corner







										0.08" Thick Wall (-0.06" to 0.06")

										1 1/2"	-0.125" to 0.125"	1 1/2"	-0.125" to 0.125"	1.42"	1.42"	Black	135,000 psi (Excellent)	33 msi to 36 msi (Standard)	250	Not Rated	Not Rated	00000000	00000	00000000	000000	00000000	000000