80/20-Compatible Caps | McMaster-Carr

	Rail Profile Rail Profile

	Single
	Double
	Quad
	Triple

	System of Measurement System of Measurement

	Rail Height Rail Height

	Cap and Seal Type Cap and Seal Type


End Cap	Cover

Seal	Panel Gasket

	T-Slot Framing Component T-Slot Framing Component


Cap and Seal	Mounting Plate

Structural Bracket

	Color Color

	Black		Gray
	Yellow		Blue
	Silver		Orange
	Red		White

	Material Material

Plastic/Rubber Blend

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

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

DFARS Specialty Metals
COTS-Exempt

	Length Length

	For T-Slot Width For T-Slot Width

	Corner Bracket Style Corner Bracket Style


Outside Corner	Three-Way Outside Corner

Closed Gusset

	Cover Type Cover Type

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	For Panel Type For Panel Type

	Mounting Fastener Thread Size Mounting Fastener Thread Size

	Mounting Fastener Thread Length Mounting Fastener Thread Length

	Required Tap Thread Size Required Tap Thread Size

	For Stem Thread Size For Stem Thread Size

	Finish Finish

	Seal Type Seal Type

	For Single Rail Profile Style For Single Rail Profile Style

Radius Two Slot

	For Stem Thread Pitch For Stem Thread Pitch

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74 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	ABS Plastic	Black, Blue, Gray, Yellow	000000	00000
1 1/2"	Push-In Rivet	ABS Plastic	Black, Blue, Gray, Yellow	0000000	0000
20mm	__	Glass-Fiber Nylon Plastic	Black	0000000	0000
30mm	__	Nylon Plastic	Black	00000000	000
40mm	__	Glass-Fiber Nylon Plastic	Black	0000000	0000
45mm	__	Nylon 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	ABS Plastic	Black	00000000	00000
1 1/2"	Push-In Rivet	ABS 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	ABS Plastic	Black, Blue, Gray, Yellow	0000000	00000
3"	Push-In Rivet	ABS Plastic	Black, Blue, Gray, Yellow	0000000	0000
40mm	__	Glass-Fiber Nylon Plastic	Black	0000000	0000
60mm	__	Nylon Plastic	Black	00000000	0000
80mm	__	Glass-Fiber Nylon Plastic	Black	0000000	0000
90mm	__	Glass-Fiber Nylon 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	ABS Plastic	Black	00000000	00000
4 1/2"	Push-In Rivet	ABS 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	ABS Plastic	Black, Blue, Gray, Yellow	0000000	00000
3"	Push-In Rivet	ABS Plastic	Black, Blue, Gray, Yellow	0000000	0000
60mm	__	Glass-Fiber Nylon Plastic	Black	00000000	0000
80mm	__	Glass-Fiber Nylon Plastic	Black	00000000	0000
90mm	__	Glass-Fiber Nylon 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	PVC Plastic	Black, Blue, Gray, Orange, Red, Yellow	00000000	0000
1 1/2"	3"	4 1/2"	0.32"	6	PVC Plastic	Black, Blue, Gray, Orange, Red, Yellow	0000000	0000
20mm	40mm	__	5mm	6	Polypropylene Plastic	Black	0000000	0000
30mm, 40mm	60mm, 80mm	__	8mm	6	Polypropylene Plastic	Black, Gray, Yellow	00000000	0000
45mm	90mm	__	10mm	6	Polypropylene Plastic	Black, Gray, Yellow	00000000	0000
Antislip
1 1/2", 40mm	3", 80mm	4 1/2"	0.32", 8mm	6	Plastic/Rubber Blend	Black	000000000	00000
1 1/2", 40mm	3", 80mm	4 1/2"	0.32", 8mm	12	Plastic/Rubber Blend	Black	000000000	00000
1"	2"	3"	0.256"	6	Plastic/Rubber Blend	Black	000000000	00000
1"	2"	3"	0.256"	12	Plastic/Rubber Blend	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	Bristle Material		Each
Inline Bulb
1 1/2"	3"	4 1/2"	0.32"	6	5/16"	__	__	1/4"	TPE Plastic	Black	__	000000000	00000
Offset Bulb
30mm	60mm	__	8mm	6 1/2	1/4"	7/8"	__	__	PVC Plastic, TPE Plastic	Gray	__	00000000	00000
45mm	90mm	__	10mm	6 1/2	1/4"	1 1/8"	__	__	PVC Plastic, TPE Plastic	Gray	__	00000000	00000
Brush
1 1/2", 40mm	3", 80mm	4 1/2"	0.32", 8mm	3 1/4	__	__	1 9/16"	__	ABS Plastic	Black	Nylon Plastic	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	TPE Plastic	Black	00000000	000000
45mm	90mm	__	10mm	6mm	6 1/2	TPE Plastic	Black	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

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.

Corner Brackets for Single Rails

Closed Gusset for Single Rails

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

Open and closed gusset brackets are reinforced to limit sway for more structural stability than corner brackets. Closed gusset brackets include a black plastic cover for a finished appearance.

			Silver
For Rail Ht.	Lg.	Mounting Fasteners Included	Material		Each
Closed Gusset
30mm	1 1/16"	Yes	Aluminum	00000000	00000

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 Four Slot Rails
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	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
Three-Way Outside Corner for Four Slot Rails
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.)