Adjustable Collars | McMaster-Carr

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Round with Support Rail

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2,711 Products

Shaft Collars

Adjustable-Width Shaft Collars

Set the stroke length of your guide rod or shaft with micrometer-like precision

8 products

Shaft Collars

Grip firmly and evenly without marring your shaft

368 products

Quick-Release Shaft Collars with Lever

Flip the lever to install, reposition, and remove

45 products

Shaft Collars with Lever

Turn the lever like a ratchet for frequent setup changes in tight spaces

108 products

Oversized Shaft Collars

Wider and thicker with a larger clamping screw than standard collars for a stronger grip

38 products

Hinged Shaft Collars

Combine the versatility of a two-piece collar with the no-fuss installation of a one-piece design

49 products

Two-Piece Shaft Collars

Attach anywhere along a shaft when other components are installed or you can't access the ends

726 products

Finish-Your-Own-Bore Shaft Collars

Machine the bore for an exact fit with your shaft

6 products

Two-Piece Shaft Collars with Lever

Snap onto your shaft and turn the lever like a ratchet for frequent setup changes in tight spaces

107 products

Support-Rail Two-Piece Shaft Collars

Attach anywhere along your shaft to create an end stop for sliding components

6 products

Tight-Hold Shaft Collars

Withstand up to three times the thrust load of standard collars

6 products

Quick-Release Shaft Collars with Pull Ring

No tools required—pull the end ring to reposition or remove

26 products

Precision-Ground-Face Shaft Collars

Mount snugly against precision bearings, sprockets, and gears

11 products

Oversized Two-Piece Shaft Collars

Wider and thicker with a larger clamping screw than standard two-piece collars for a stronger grip

94 products

Plastic Shaft Collars

Lightweight alternatives to metal collars that won't mar your shaft

43 products

Extra-Wide Shaft Collars

Wider with more clamping screws than standard collars for a stronger grip

38 products

Extra-Wide Two-Piece Shaft Collars

Wider with more clamping screws than standard two-piece collars for a stronger grip

35 products

Square Two-Piece Shaft Collars

Grip square shafts evenly without marring them

34 products

Top-and-Bottom-Mount Shaft Collars

Attach components or stack additional top-and-bottom-mount collars

15 products

Two-Piece Shaft Collars with Wrench Flats

Turn drive shafts with a wrench without marring or gouging them

69 products

Plastic Two-Piece Shaft Collars

Attach these lightweight alternatives to metal collars anywhere along a shaft

67 products

Top-and-Bottom-Mount Two-Piece Shaft Collars

Add anywhere on a shaft to attach components or stack additional top-and-bottom-mount collars

58 products

Finish-Your-Own-Bore Two-Piece Shaft Collars

Machine the bore to the exact size you need and attach collars anywhere along your shaft

19 products

Set Screw Two-Piece Shaft Collars

Attach anywhere along a shaft and the set screw digs in for a tight, secure hold

18 products

Hex Two-Piece Shaft Collars

Attach anywhere along hex shafts and grip evenly without marring them

14 products

Plastic Quick-Release Shaft Collars with Pull Ring

Pull the end ring to reposition or remove these lightweight alternatives to metal collars

13 products

Finish-Your-Own-Face Shaft Collars

Machine any slots, holes, and grooves you need into the face

11 products

D-Profile Two-Piece Shaft Collars

Attach anywhere along D-profile shafts and grip evenly without marring them

8 products

Other Products

Connectors for Telescoping Tubes

Lock tubes in place to create adjustable structures, such as folding stands and extension poles

7 products

Bore Reducers

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

31 products

Shaft Collar Adapters

Sized specifically to adapt standard shaft collars to pipe, creating a tight fit

12 products

Pipe Hangers

Suspend pipe, conduit, and tube from rods, hooks, and straps

18 products

Rigid Shaft Couplings

Join two shafts that are aligned and handle higher torque than flexible shaft couplings

491 products

Lead Screw Collars

Position components and limit travel along a lead screw

55 products

Threaded Rod Collars

Hold and position parts on a threaded rod

24 products

Adjustable Handles

Lift and turn to easily position and tighten components; also called clamping handles

9 products

Pipe Collars

Clamp pipe passing through floors and walls

24 products