Metric Rails | McMaster-Carr

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System of Measurement

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T-Slotted Framing Rail Profile

Length

Material

T-Slotted Framing Component

Carriage Width

Carriage Profile

Travel Length

Overall Height

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Dynamic Load Capacity

Less than 1,000 lb.

1,000 lb. to 9,999 lb.

10,000 lb. to 19,999 lb.

20,000 lb. to 29,999 lb.

30,000 lb. or greater

Carriage Length

Single Rail Profile Style

Height

Bearing Type

Rail Length

Mounting Fastener Thread Size

Mounting Hole Thread Size

Carriage Material

Load Fastening

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

1C999

EAR99

DFARS Specialty Metals

2,285 Products

Power Transmission

Guide Rail Carriages

Carry loads along guide rails on accurate and repeatable paths in automated systems

347 products

Linear Motion Slides

Move loads on accurate and repeatable paths beyond the mounting surface

80 products

Telescoping Rails

Connect multiple rails to create custom positioning tables or telescoping slides

6 products

Positioning Slides

A lead screw drives the carriage for accurate positioning in laboratory and production equipment

78 products

Track Rollers

Support and carry objects as they move along conveyor systems

21 products

Linear Shaft Supports

Support linear shafts to prevent bending and rolling under loads

72 products

Linear Shafts

Pair with linear bearings to reduce friction in manual and automated systems

8 products

Linear Bearings

Minimize friction as parts move along a shaft

79 products

Linear Bearing Brakes

Lock bearings in place on a shaft for precise positioning

4 products

Air Slides

Convey grippers, printing heads, and other loads back and forth on a carriage

104 products

Building and Machinery Hardware

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

414 products

Locking-Slotted Framing Rails

Slots are mushroom shaped to stand up to more vibration and movement than T-shaped slots

1 product

Locking-Slotted Framing Nuts

Secure brackets and other accessories to locking-slotted rails

3 products

Flush-Fit Framing Rails

Join flush-fit framing rails to build smooth stair and platform railings

1 product

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

8 products

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

534 products

Door Tracks

Hang panels to slide over openings when there’s not space for a swinging door

1 product

Electrical

DIN Rails

Mount terminal blocks, power supplies, relays, and other devices on walls and in enclosures

40 products

DIN Rail Mounting Adapters

Attach to components not made for DIN rail and clip on to install

10 products

DIN Rail Mounting Brackets

Create space behind rails to fit wiring and bulky components

12 products

Material Handling

Conveyor Guide Mounting Rods

Secure guides and other attachments to conveyors

57 products

Conveyor Guide Clamps

Connect conveyor guides to each other and secure them in place

1 product

Cable Holders

Mount to a surface to secure and route cable

6 products

Fastening and Joining

Weld Nuts

Weld to metal surfaces to add permanent threads

63 products

Measuring and Inspecting

Coordinate Measuring Machine Fixture Plate Mounting Rails

Bolt to your table to secure the dock for your quick-change system hub

2 products

Fabricating and Machining

T-Tracks

Versatile mounting tracks for jigs, fences, and other custom setups

14 products