Metric Sleeves | McMaster-Carr

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For Housing ID

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For Load Direction

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USMCA Qualifying

REACH Compliance

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8,288 Products

Power Transmission

Plain Bearings

With no moving parts, the simplest type of bearing

Linear Bearings

Linear Bearings

Minimize friction as parts move along a shaft

Bearing Adapter Sleeves

Bearing Adapter Sleeves

Close gaps between your bearing and shaft for a tight fit

Bore Reducers

Adapt the bore of a component to a smaller size for mounting on a shaft

Shaft Couplings

Shaft Couplings

Connect two shafts to transfer rotary motion from one to the other

Pulley and Sprocket Bushings

Pulley and Sprocket Bushings

Mount between a rotating shaft and equipment to secure the shaft and reduce vibration

Fastening and Joining

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

Coupling Nuts

Connect and extend threaded rods

Socket Nuts

Install in recessed holes and tight spots where a wrench won’t fit; also known as Allen nuts

Rivet Nuts

Add threads to thin panels with access from only one side; also known as blind inserts

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Insulating Washers

Insulating Washers

Isolate screws from electrical current and prevent corrosion where fasteners attach

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

Spring Pins

Squeeze and insert into tight holes to hold parts in place with tension

Unthreaded Inserts

Unthreaded Inserts

Reinforce, align, and adjust joints as you tighten a fastener

Binding Barrels and Screws

Binding Barrels and Screws

Thread together for a low-profile fastener

Fabricating and Machining

Drill Bushings

Fit in holes to guide drill bits and other cutting tools for precise and repeatable holes and cuts

Fluid Handling

Tube Fitting Sleeves

Tube Fitting Sleeves

Pair with nuts and fittings to form a secure connection on tubing

Tube Fitting Nuts

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

Building and Machinery Hardware

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

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