80/20-Compatible Caps | McMaster-Carr

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	Rail Profile Rail Profile

	Single
	Double
	Quad
	Triple

	T-Slot Framing Component T-Slot Framing Component


Cap and Seal	Mounting Plate

Structural Bracket

	System of Measurement System of Measurement

	Rail Height Rail Height

	Cap and Seal Type Cap and Seal Type


End Cap	Cover

Panel Gasket	Seal

	Color Color

	Black		Gray
	Yellow		Blue
	Orange		Red
	Silver		White

	Material Material

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

DFARS Specialty Metals
COTS-Exempt

	For T-Slot Width For T-Slot Width

	Length Length

	Cover Type Cover Type

	Corner Bracket Style Corner Bracket Style


Outside Corner	Three-Way Outside Corner

	For Panel Type For Panel Type

	Mounting Fastener Thread Size Mounting Fastener Thread Size

	Mounting Fastener Thread Length Mounting Fastener Thread Length

	Finish Finish

	For Stem Thread Size For Stem Thread Size

	Required Tap Thread Size Required Tap Thread Size

	Seal Type Seal Type

	Bulb Height Bulb Height

	Bulb Seal Type Bulb Seal Type

	Offset Offset

	For Stem Thread Pitch For Stem Thread Pitch

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73 Products

T-Slotted Framing Caps, Covers, and Seals

Seal T-slots, rail ends, and gaps between rails to keep out dust, debris, and other contaminants.

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

End Caps for Single Rails

End Cap for Single Rails

End caps snap on to protect the ends of rails from damage and keep out dust and grime.

For Rail Ht.	Includes	Material	Choose a Color		Each
1"	Push-In Rivet	Plastic	Black, Blue, Gray, Yellow	000000	00000
1 1/2"	Push-In Rivet	Plastic	Black, Blue, Gray, Yellow	0000000	0000
20mm	__	Plastic	Black	0000000	0000
30mm	__	Plastic	Black	00000000	000
40mm	__	Plastic	Black	0000000	0000
45mm	__	Plastic	Black	00000000	0000

End Caps for Single Radius Two Slot Rails

End Cap for Single Radius Two Slot Rails

End caps snap on to protect the ends of rails from damage and keep out dust and grime.

For Rail Ht.	Includes	Material	Color		Each
1"	Push-In Rivet	Plastic	Black	00000000	00000
1 1/2"	Push-In Rivet	Plastic	Black	00000000	0000

End Caps for Double Rails

End Cap for Double Rails

End caps snap on to protect the ends of rails from damage and keep out dust and grime.

For Rail Ht.	Includes	Material	Choose a Color		Each
2"	Push-In Rivet	Plastic	Black, Blue, Gray, Yellow	0000000	00000
3"	Push-In Rivet	Plastic	Black, Blue, Gray, Yellow	0000000	0000
40mm	__	Plastic	Black	0000000	0000
60mm	__	Plastic	Black	00000000	0000
80mm	__	Plastic	Black	0000000	0000
90mm	__	Plastic	Black	00000000	0000

End Caps for Triple Rails

End Cap for Triple Rails

End caps snap on to protect the ends of rails from damage and keep out dust and grime.

For Rail Ht.	Includes	Material	Color		Each
3"	Push-In Rivet	Plastic	Black	00000000	00000
4 1/2"	Push-In Rivet	Plastic	Black	00000000	0000

End Caps for Quad Rails

End Cap for Quad Rails

End caps snap on to protect the ends of rails from damage and keep out dust and grime.

For Rail Ht.	Includes	Material	Choose a Color		Each
2"	Push-In Rivet	Plastic	Black, Blue, Gray, Yellow	0000000	00000
3"	Push-In Rivet	Plastic	Black, Blue, Gray, Yellow	0000000	0000
60mm	__	Plastic	Black	00000000	0000
80mm	__	Plastic	Black	00000000	0000
90mm	__	Plastic	Black	00000000	0000

Replacement Push-In Rivets for End Caps

Replacement Push-In Rivet

For Rail Ht.
Single, Single Radius Two Slot	Double, Quad	Triple	Material	Choose a Color		Each
1"	2"	3"	Plastic	Black, Blue, Gray, Yellow	0000000	00000
1 1/2"	3"	4 1/2"	Plastic	Black, Blue, Gray, Yellow	0000000	000

Covers

Wear Strip

Dust Cover

Antislip Cover

Wear strip covers slide into a T-slot to provide a slippery, abrasion-resistant surface.

Dust covers conceal wires and keep dust out of the T-slot. Cut covers to size with scissors and press them into a T-slot. Flip the black dust covers over and they have a groove for holding a panel inside the T-slot.

Antislip covers add traction to a rail. Push them into the T-slot.

For Rail Ht.
Single	Double, Quad	Triple	For T-Slot Wd.	Lg., ft.	Material	Choose a Color		Each
Wear Strip
1"	2"	3"	0.256"	3	UHMW Plastic	White	00000000	000000
1"	2"	3"	0.256"	6	UHMW Plastic	White	0000000	00000
1 1/2"	3"	4 1/2"	0.32"	3	UHMW Plastic	White	000000000	00000
1 1/2"	3"	4 1/2"	0.32"	6	UHMW Plastic	White	000000000	00000
40mm	80mm	__	8mm	3	UHMW Plastic	White	00000000	00000
40mm	80mm	__	8mm	6	UHMW Plastic	White	00000000	00000
Dust Cover
1"	2"	3"	0.256"	6	Plastic	Black, Blue, Gray, Orange, Red, Yellow	00000000	0000
1 1/2"	3"	4 1/2"	0.32"	6	Plastic	Black, Blue, Gray, Orange, Red, Yellow	0000000	0000
20mm	40mm	__	5mm	6	Plastic	Black	0000000	0000
30mm, 40mm	60mm, 80mm	__	8mm	6	Plastic	Black, Gray, Yellow	00000000	0000
45mm	90mm	__	10mm	6	Plastic	Black, Gray, Yellow	00000000	0000
Antislip
1 1/2", 40mm	3", 80mm	4 1/2"	0.32", 8mm	6	Buna-N Rubber	Black	000000000	00000
1 1/2", 40mm	3", 80mm	4 1/2"	0.32", 8mm	12	Buna-N Rubber	Black	000000000	00000
1"	2"	3"	0.256"	6	Buna-N Rubber	Black	000000000	00000
1"	2"	3"	0.256"	12	Buna-N Rubber	Black	000000000	00000

Seals

Inline Bulb Seal

Offset Bulb Seal

Brush Seal

Bulb and brush seals cover door gaps to keep out air and dust. Press them into a T-slot.

For Rail Ht.
Single	Double, Quad	Triple	For T-Slot Wd.	Lg., ft.	Bulb Ht.	Offset	Bristle Lg.	Required Door Gap	Material	Color		Each
Inline Bulb
1 1/2"	3"	4 1/2"	0.32"	6	5/16"	__	__	1/4"	Rubber	Black	000000000	00000
Offset Bulb
30mm	60mm	__	8mm	6 1/2	1/4"	7/8"	__	__	PVC Plastic	Gray	00000000	00000
45mm	90mm	__	10mm	6 1/2	1/4"	1 1/8"	__	__	PVC Plastic	Gray	00000000	00000
Brush
1 1/2", 40mm	3", 80mm	4 1/2"	0.32", 8mm	3 1/4	__	__	1 9/16"	__	Nylon Plastic	Black	000000000	00000

Panel Gaskets

Panel Gasket

Panel gaskets keep out liquid and dust while holding panels securely in place. Press them into a T-slot.

For Rail Ht.
Single	Double, Quad	Triple	For T-Slot Wd.	For Panel Thick.	Lg., ft.	Material	Color		Each
30mm, 1 1/2", 40mm	60mm, 3", 80mm	4 1/2"	8mm, 0.32"	6mm	6 1/2	Rubber	Black	00000000	00000
45mm	90mm	__	10mm	6mm	6 1/2	Rubber	Black	00000000	00000

T-Slotted Framing Mounting Brackets

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

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

T-Slotted Framing Structural Brackets

Connect T-slotted rails and reinforce joints for structural stability. Fasteners are included.

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

Outside Corner Brackets for Single Rails

Outside Corner Bracket for Single Rails

Three-Way Outside Corner Bracket for Single Rails

Corner, reducer, surface, and adapter brackets connect rails without machining.

Outside corner and three-way outside corner brackets connect the ends of rails for a finished look. To install, tap the existing hole in the end of each rail and screw the bracket in.

Outside Corner
For Rail Ht.	Lg.	Color	Material	Required Tap Thread Size	Mounting Fasteners Included		Each
1"	1"	Silver	Lacquer-Coated Aluminum	1/4"-20	Yes	000000000	00000
1 1/2"	1 1/2"	Silver	Lacquer-Coated Aluminum	M8	Yes	000000000	0000
20mm	3/4"	Silver	Lacquer-Coated Aluminum	M5	Yes	00000000	0000
30mm	1 1/8"	Silver	Lacquer-Coated Aluminum	M8	Yes	00000000	0000
40mm	1 5/8"	Silver	Lacquer-Coated Aluminum	M8	Yes	00000000	0000
45mm	1 3/4"	Silver	Lacquer-Coated Aluminum	M12	Yes	00000000	00000
Three-Way Outside Corner
1"	1"	Silver	Lacquer-Coated Aluminum	1/4"-20	Yes	000000000	00000
1 1/2"	1 1/2"	Silver	Lacquer-Coated Aluminum	M8	Yes	000000000	00000
20mm	3/4"	Silver	Lacquer-Coated Aluminum	M5	Yes	00000000	00000
30mm	1 1/8"	Silver	Lacquer-Coated Aluminum	M8	Yes	00000000	00000
40mm	1 5/8"	Silver	Lacquer-Coated Aluminum	M8	Yes	00000000	00000
45mm	1 3/4"	Silver	Lacquer-Coated Aluminum	M12	Yes	00000000	00000

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)