Caster Mounts | McMaster-Carr

	For Use On For Use On

Angle Iron

Channel

Round Tubing

Square Tubing

Wood

	Socket Mount Type Socket Mount Type

Screw On

Push In

Weld On

	System of Measurement System of Measurement

Inch

Metric

	For Stem Diameter For Stem Diameter

5/16"

7/16"

	Material Material

	For Stem Type For Stem Type

Friction Grip

Threaded

	Mounting Plate Width Mounting Plate Width

1 3/8"

2 3/16"

	For Maximum Stem Length For Maximum Stem Length

	For Tube ID For Tube ID

	For Stem Shape For Stem Shape

Round

Tapered Round

	Length Length

	Mounting Location Mounting Location

Inside Corner

Side

Outside Corner

	Thread Size Thread Size

	Diameter Diameter

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Rail Profile Rail Profile

	Double
	Quad

	Mounting Plate Length Mounting Plate Length

1 5/16"

1 5/8"

1 11/16"

	For Stem Thread Size For Stem Thread Size

	Thread Length Thread Length

	Rail Height Rail Height

	Finish Finish

Zinc Plated

Powder Coated

	For Screw Size For Screw Size

3/16"

1/4"

	Hole Diameter Hole Diameter

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66 Products

About Threaded Studs and Rods

About Casters and Wheels

Mounting Sockets for Friction-Grip Stem Casters

Sockets for angle iron and channel mount to the sides or corners of angle iron and channel. Sockets for round tubing and square tubing press-fit into tubing. Use the round stem shape with grip-ring stem casters and the tapered round stem shape with grip-neck stem casters. Sockets for wood have teeth on the edge of the socket to grip wood legs for a secure hold.

Weld-On Sockets

Weld On Inside Corner Mount for Angle Iron/Channel

Round Stem

						Mounting Plate
Mount. Location	For Use On	For Stem Type	For Stem Shape	For Stem Dia.	For Max. Stem Lg.	Lg.	Wd.	Material		Each
Inside Corner	Angle Iron, Channel	Friction Grip	Round	7/16"	1 1/2"	1 11/16"	1 3/8"	Steel	00000000	00000

Screw-On Sockets

Screw-On Inside Corner Mount for Angle Iron/Channel

Outside Corner Mount for Angle Iron/Channel

Side Mount for Angle Iron/Channel

Round Stem

						Mounting Plate
Mount. Location	For Use On	For Stem Shape	For Stem Dia.	For Max. Stem Lg.	For Screw Size	Lg.	Wd.	Material	Pkg. Qty.		Pkg.
Inside Corner	Angle Iron, Channel	Round	7/16"	1 1/2"	1/4"	1 11/16"	1 3/8"	Zinc-Plated Steel	4	00000000	000000
Outside Corner	Angle Iron, Channel	Round	7/16"	1 1/2"	1/4"	1 11/16"	1 3/8"	Zinc-Plated Steel	4	00000000	00000
Side	Angle Iron, Channel	Round	7/16"	1 1/2"	1/4"	1 5/8"	2 3/16"	Zinc-Plated Steel	4	00000000	00000

Push-In Sockets

For Round
Tubing and
Round Stem

For Round Tubing
and Tapered
Round Stem

For Square
Tubing and
Round Stem

For Square Tubing
and Tapered
Round Stem

For Wood

Round Stem

Tapered Round Stem

For Use On	For Stem Shape	For Stem Dia.	For Max. Stem Lg.	For Tube ID	For Mounting Hole Dia.	For Mounting Hole Dp.	Material	Pkg. Qty.		Pkg.
Round Tubing	Round	7/16"	1 13/16"	7/8"	__	__	Plastic	4	00000000	00000
Round Tubing	Round	7/16"	1 7/8"	25/32"	__	__	Plastic	4	00000000	0000
Round Tubing	Round	7/16"	1 7/8"	27/32"	__	__	Plastic	4	00000000	00000
Round Tubing	Round	7/16"	1 7/8"	29/32"	__	__	Plastic	4	00000000	00000
Round Tubing	Tapered Round	7/16"	1 15/16"	3/4"	__	__	Plastic	4	0000000	0000
Round Tubing	Tapered Round	7/16"	1 15/16"	7/8"	__	__	Plastic	4	0000000	0000
Round Tubing	Tapered Round	7/16"	1 15/16"	1"	__	__	Plastic	4	0000000	0000
Square Tubing	Round	7/16"	1"	29/32"	__	__	Plastic	4	00000000	0000
Square Tubing	Round	7/16"	2"	29/32"	__	__	Plastic	4	00000000	00000
Square Tubing	Tapered Round	7/16"	1 15/16"	3/4"	__	__	Plastic	4	0000000	0000
Square Tubing	Tapered Round	7/16"	1 15/16"	7/8"	__	__	Plastic	4	0000000	0000
Square Tubing	Tapered Round	7/16"	1 15/16"	1"	__	__	Plastic	4	0000000	0000
Wood	Tapered Round	5/16"	1 1/2"	__	3/8"	1 5/8"	Zinc Plated Steel	4	00000000	0000

Mounting Sockets for Threaded-Stem Casters

Sockets mount to the inside corners of angle iron and channel to provide a threaded mounting hole for stem casters.

					Mounting Plate
For Use On	Mounting Location	For Stem Shape	For Stem Thread Size	For Screw Size	Lg.	Wd.	Material	Pkg. Qty.		Pkg.
Screw-On Sockets
Angle Iron, Channel	Inside Corner	Round	3/8"-16	3/16"	1 5/16"	2"	Zinc-Plated Steel	4	00000000	00000
Angle Iron, Channel	Inside Corner	Round	5/16"-18	3/16"	1 5/16"	2"	Zinc-Plated Steel	4	00000000	0000

Wheel Axles

Axle

Axle with Grease Fitting

Replace worn or broken caster axles.

Axle
Dia.	Lg.	Thread Size	Thread Lg.	Includes		Each
Zinc-Plated Steel
1/4"	1 1/2"	1/4"-20	7/8"	Hex Nut	00000000	00000
1/4"	1 3/4"	1/4"-20	7/8"	Hex Nut	00000000	000
5/16"	2 1/4"	5/16"-18	1"	Hex Nut	00000000	0000
3/8"	2 3/16"	3/8"-16	9/16"	Hex Nut	00000000	0000
3/8"	2 1/2"	3/8"-16	1"	Hex Nut	00000000	0000
1/2"	3"	1/2"-13	1 1/8"	Hex Nut	00000000	0000
1/2"	3 1/4"	1/2"-20	3/4"	Hex Nut	00000000	0000
5/8"	3 3/4"	5/8"-11	1 5/8"	Hex Nut	00000000	0000
3/4"	4"	3/4"-10	1 3/4"	Hex Nut	00000000	0000
3/4"	4 1/2"	3/4"-10	1 3/4"	Hex Nut	0000000	0000
3/4"	5"	3/4"-10	2"	Hex Nut	00000000	0000
1"	5"	1"-14	2 1/2"	Hex Nut	00000000	00000
1"	6"	1"-14	2 3/4"	Hex Nut	00000000	00000
Steel with Blue-Painted Head
1 1/4"	6 3/8"	1 1/4"-12	1 3/8"	Hex Nut	00000000	00000
Axle with Grease Fitting
Zinc-Plated Steel
5/16"	2 1/4"	5/16"-18	1/2"	Hex Nut	00000000	0000
1/2"	2 13/16"	1/2"-20	3/4"	Hex Nut	00000000	0000
1/2"	3"	1/2"-13	1 1/4"	Hex Nut	00000000	0000
1/2"	3 3/8"	1/2"-13	5/8"	Hex Nut	00000000	0000
1/2"	4"	1/2"-20	1 1/4"	Hex Nut	00000000	0000
1/2"	4 1/2"	1/2"-13	1 1/4"	Hex Nut	00000000	0000
3/4"	4 1/4"	3/4"-10	3/4"	Hex Nut	00000000	00000
3/4"	4 3/4"	3/4"-10	11/16"	Hex Nut	00000000	00000

T-Slotted Framing Mounting Brackets

Attach sensors, tubes, and other components to T-slotted framing rails and structures.

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

End Cap Mounting Plates

End Cap Mounting Plate for Double Rails

End Cap Mounting Plate for Quad Rails

End cap mounting plates have a threaded hole to accept attachments such as mounting feet and stem casters.

				Silver		Black
For Rail Ht.	For Stem Thread Size	Material	Mounting Fasteners Included		Each		Each
For Double Rails
2"	1/4"-20	Powder-Coated Zinc	Yes	00000000	000000	000000000	000000
2"	3/8"-16	Powder-Coated Zinc	Yes	00000000	00000	000000	00
3"	1/2"-13	Powder-Coated Zinc	Yes	00000000	00000	000000	00
3"	3/8"-16	Powder-Coated Zinc	Yes	00000000	00000	000000000	00000
40mm	M6 × 1mm	Powder-Coated Zinc	Yes	000000	00	00000000	00000
60mm	M8 × 1.25mm	Powder-Coated Zinc	Yes	000000	00	00000000	00000
80mm	M8 × 1.25mm	Powder-Coated Zinc	Yes	000000	00	00000000	00000
90mm	M12 × 1.75mm	Powder-Coated Zinc	Yes	000000	00	00000000	00000
For Quad Rails
2"	1/4"-20	Powder-Coated Zinc	Yes	000000	00	000000000	00000
2"	3/8"-16	Powder-Coated Zinc	Yes	00000000	00000	000000	00
3"	1/2"-13	Powder-Coated Zinc	Yes	00000000	00000	000000	00
3"	3/8"-16	Powder-Coated Zinc	Yes	000000	00	000000000	00000
60mm	M8 × 1.25mm	Powder-Coated Zinc	Yes	000000	00	00000000	00000
80mm	M8 × 1.25mm	Powder-Coated Zinc	Yes	000000	00	00000000	00000
90mm	M12 × 1.75mm	Powder-Coated Zinc	Yes	000000	00	00000000	00000

Hollow Threaded Studs

A hollow center allows these studs to be used as an axle, a vent, or a passageway for wiring. Made from 18-8 stainless, they have good chemical resistance and may be mildly magnetic. Thread length is the same on both ends.

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

18-8 Stainless Steel
Lg.	Thread Lg.	Hole Dia.	Tensile Strength	Hardness		Each
1/4"-20
4"	1 1/2"	1/8"	Not Rated	Rockwell B83	000000000	000000
8"	2 3/4"	1/8"	Not Rated	Rockwell B83	000000000	00000
5/16"-18
4"	1 1/2"	3/16"	Not Rated	Rockwell B83	000000000	00000
8"	2 3/4"	3/16"	Not Rated	Rockwell B83	000000000	00000
3/8"-16
4"	1 1/2"	7/32"	Not Rated	Rockwell B83	000000000	00000
8"	2 3/4"	7/32"	Not Rated	Rockwell B83	000000000	00000
1/2"-13
4"	1 1/2"	11/32"	Not Rated	Rockwell B83	000000000	00000
8"	2 3/4"	11/32"	Not Rated	Rockwell B83	000000000	00000