Adjusters | McMaster-Carr

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33,459 Products

Most Likely Products

Positioning Slides

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

160 products

Leveling Mounts

Level machines and workbenches on uneven surfaces, reduce vibration, and protect floors

1,467 products

Motor Mounts

Adjust motor positions in belt-driven systems to increase efficiency and reduce wear on components

34 products

Positioning Arms

Mount and position tools, small electronics, and displays

240 products

All Results

Power Transmission

Positioning Slides

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

160 products

Motor Mounts

Adjust motor positions in belt-driven systems to increase efficiency and reduce wear on components

34 products

Compression Springs

When squeezed, springs push back to their original length

2,792 products

Linear Wave Springs

Absorb vibration and fill in gaps along the length of an object

22 products

Torsion Springs

Wrap around a shaft or rod to maintain pressure on objects as they rotate

560 products

Extension Springs

As stretched, springs become increasingly harder to pull

4,740 products

Disc Springs

Maintain tension and separate components on shafts, under bolt heads, and at the ends of valves

1,680 products

Garter Springs

Exert radial force from all directions to maintain pressure on shafts or in seals

74 products

Die Springs

Support heavy loads with minimal compression in high-impact jobs such as punching and stamping

484 products

Made-to-Order Compression Springs

If you can't find the exact size spring you need, we'll get it made for you

80 products

Strip Springs

Wrap around a shaft and extend to pull objects in a linear direction

77 products

Spring Assortments

Keep extension, compression, and torsion spring types of various sizes on hand

7 products

Rotor Springs

Wind to store power, then release to create rotary motion—similar to winding a wristwatch

10 products

Shock Absorbers

Slow and stop loads to reduce impact that can damage equipment like conveyors, lifters, and presses

76 products

Air Springs

Absorb vibration in moving equipment such as conveyors and transfer stations; lift and level loads

25 products

Gas Springs

Support the weight of doors, hatches, and lids to assist opening and closing

812 products

Precision Lead Screws and Nuts

Pair with a motor for accurate starts and stops in automated motion and positioning applications

962 products

Precision Lead Screw Nut Flanges

Pair with precision lead screw nuts to make custom flange nuts that move items along lead screws

18 products

Roller Chain Alignment Tools

Align sprockets and roller chain during installation and adjustment

1 product

Chain and Belt Tensioners

Control tension on your roller chain or belt for smooth operation and a long service life

87 products

Electric Actuators

Push and pull loads with more precise positioning than air and hydraulic cylinders

61 products

Lead Screws and Nuts

Move components in a straight line in clamping and heavy duty lifting and lowering applications

838 products

Ball Screws and Nuts

Provide smooth travel where high speeds, accurate positioning, and repeatable movement are required

200 products

Brake Spring Pliers

Stretch brake springs into place and install or remove them from anchor posts

1 product

Lead Screw Collars

Position components and limit travel along a lead screw

55 products

End Supports for Ball Screws and Precision Lead Screws

Brace and secure the ends of ball screws and precision lead screws

16 products

Ball Screw/Splines and Bearings

Transmit rotary power, move loads along the shaft, or do both at once

3 products

Roller Screws and Nuts

Create more points of contact to handle much higher loads than ball screws and nuts of the same size

8 products

Rotary Shafts

Pair with gears, sprockets, and bearings to transmit rotary motion

21 products

Sleeve Splines and Bearings

Transmit rotary power or move loads along the length of splines

9 products

Building and Machinery Hardware

Leveling Mounts

Level machines and workbenches on uneven surfaces, reduce vibration, and protect floors

1,467 products

Vibration-Damping Mounts

Attach to machinery to reduce vibration and noise and extend service life

975 products

Protective Feet

Add to furniture and light equipment to protect floors from scratches and wear

279 products

Leveling Mount Inserts

Slip onto equipment and furniture to add threaded-stud leveling feet

113 products

Vibration-Damping Pads

Place under machinery to reduce vibration and noise, extending service life and protecting floors

149 products

Positioning Arms

Mount and position tools, small electronics, and displays

240 products

Laboratory Jacks

Position small shop and lab equipment on an adjustable-height surface

7 products

Tripod Head Adapters

Mount ball-grip components such as arms and device grips to the top of tripods

1 product

Tripods

Stabilize cameras and other equipment

4 products

Positioning Arm Mounts

Add a mounting surface to positioning arms

4 products

Monitor Stands

Support a monitor at viewing height

6 products

Tool Support Arms

Suspend tools to keep them out of the way but still within reach

5 products

T-Slotted Framing and Fittings

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

2,276 products

Locking-Slotted Framing Feet

Stabilize locking-slotted framing structures against floors, walls, and ceilings

1 product

Slip-On Framing and Fittings

Insert rails into fittings and tighten screws to make guards, railings, and racks

2 products

Adjustable Handles

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

760 products

Crank Handles

The offset handle gives extra leverage to maximize turning force

102 products

Door Closers

Automatically and smoothly pull doors, storm doors, and gates closed

106 products

Door Springs

Extend and snap back to pull storm doors and gates closed

18 products

Window Openers

Operate crank- or push-to-open casement and awning windows

3 products

Window Opener Handles

Replace handles instead of the entire opener to operate crank-to-open windows

2 products

Window Balancers

Suspend, lift, or lower objects that move vertically in a track such as windows, doors, and panels

32 products

Hinge Adjusters

Bend hinges to correct misaligned and sagging doors without removing them

1 product

Bumpers

Absorb impact to protect equipment and surfaces from dents and scuffs

1,449 products

Window Latches

Hold windows and screens closed for security or open for ventilation

9 products

Push-to-Close Latches

Automatically hold doors shut when you push them closed

9 products

Overhead Door Spring Winding Rods

Keep your overhead door balanced on both tracks for smooth, even opening and closing

3 products

Fastening and Joining

Thumb Screws

Tighten and loosen by hand without the need for tools

1,519 products

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

5,286 products

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

95 products

Adjustable Wrenches

Adjust the jaws to fasten different size nuts, bolts, or workpiece

107 products

Pipe Wrenches

Grasp and turn pipe, conduit, and fittings

115 products

Pipe/Valve Wheel Wrenches

Grip and turn pipe with one end and loosen valve wheels with the other

1 product

Socket Wrenches

Apply torque to turn nuts, bolts, and other fasteners without rounding the heads

71 products

Fabricating and Machining

Clamps

Hold workpieces securely in place

752 products

Swivel Pads

Attach to the ends of screws, threaded studs, or C-clamps to apply even pressure on uneven surfaces

58 products

Adjustable Pliers

A range of jaw positions for turning fasteners and gripping workpieces

81 products

Locking Pliers

Clamp workpieces and lock them in place to keep your hands free

51 products

Holders for Locking Pliers

Secure to a table or benchtop and slide in locking pliers for a hands-free way to hold your work

1 product

Springs for Locking Pliers

Change out worn or broken springs in the handle of your locking pliers

6 products

Pliers Sets

A variety of pliers styles and sizes for whatever job comes up

15 products

Screw-Extracting Pliers

Firmly grip stripped, rusty, and tamper-resistant screw heads for removal

3 products

Jaw Covers for Pliers

Cover the jaws of slip-joint pliers to protect the finish of your workpiece

2 products

Slip-Joint Pliers

Adjust the pivot point to switch between two different jaw opening sizes

24 products

Long-Nose Pliers

Grab, bend, and position wire and other small parts

132 products

Parallel-Jaw Pliers

Jaws grip better than standard pliers to keep irregularly shaped objects from slipping

13 products

Angle Plates

Ensure accurate right angles and hold workpieces and fixtures perpendicular to your machine table

61 products

Milling Tables

Turn the handles to position work on X- and Y-axes

3 products

Sine Plates

Use with gauge blocks to measure angles on your workpiece or set up a part for precision grinding

4 products

Rotary Tables

Rotate your work 360° for easy access to different angles

6 products

Fixture Clamps

Secure your workpiece to a fixture table so it won't move during machining

375 products

Sine Bars

Measure, mark, and inspect exact angles on dies and other precision parts

2 products

Parallels

Raise workpieces above your vise to create clearance for cutting tools

36 products

Fixture Kits

Everything needed to mount workpieces of different sizes to your machine table

48 products

Support Blocks

Support setup clamps for quick height adjustments

3 products

Rotary Angle Indexers

Position round workpieces at precise, repeatable angles for machining flats, hexes, and key slots

2 products

Rotary Table Chuck Mounting Kits

Everything you need to precisely mount lathe chucks to rotary tables

10 products

Alignment Locks

Precisely align your mold halves

25 products

Gibs

Hold components in place and create a surface for them to slide along in molds and dies

56 products

Gas Fitting Pliers

Perfect for adjusting burners and gas pipe fittings of various sizes

4 products

Fabric-Stretching Pliers

Grip and pull thin materials without tearing them

9 products

Material Handling

Conveyor Belt Take-up Frames

Adjust the tension on conveyor belts by extending or retracting pulleys

28 products

Conveyor Stands

Pair with conveyors to design a system that moves parts exactly where they need to go

60 products

Conveyor Belt Take-up Bearings

Use with take-up frames to adjust tension on conveyor belts

14 products

Material Support Stands

Feed material and hold it steady while machining

47 products

Conveyors

Roller, skate wheel, ball transfer, belt, and vacuum conveyors

199 products

Jacks

Lift, hold, push, and position heavy objects

257 products

Lift Tables

Lift material to a comfortable working height and adjust as needed

99 products

Scissor Lifts

Take your maintenance and repair tasks to new heights

1 product

Cranes

Raise and move heavy or bulky objects overhead

1 product

Railway Track Aligners

Push or pull rails to correct spacing after a derailment and when installing gauge tie rods

1 product

Railcar Rerailers

Guide derailed wheels back onto tracks

2 products

Webbing Buckles

Pair with webbing to make adjustable straps

55 products

Measuring and Inspecting

Micrometer Heads

Mount on jigs, fixtures, and machine tools to position equipment and measure length

36 products

Coordinate Measuring Machine Plates and Fixtures

Raise workpieces and position them on a fixture plate

128 products

Bore Gauge Calibrators

Set and check the accuracy of two-point bore gauges

1 product

Gauge Blocks

Confirm dies, fixtures, and other workpieces meet precise tolerances and calibrate measuring tools

738 products

Micrometer Head Mounting Brackets

Mount a micrometer head to your jig or fixture to accurately position workpieces

16 products

Coordinate Measurement Machine Probes

Take 3D measurements of workpieces on your CMM or CNC machine to inspect for quality

24 products

Height Gauge Calibrators

Ensure height gauges are accurate

3 products

Shaft Alignment Kits

Confirm that shafts are aligned or measure the degree of their misalignment

9 products

Pipe Flange Aligners

Line up flange holes so they bolt securely and connections won’t leak

21 products

Laser Directing Components

Turn or split dot lasers to point them where needed

12 products

Inspection Parallels

Line up workpieces for precise machining, or support them at a level height for inspecting

8 products

Rivet Hole Locators

Mark even spacing for rivets and other fasteners before you drill

1 product

Scales

Bench-top, hanging, floor, and conveyor scales

1 product

Containers, Storage, and Furniture

Workbench Bases

Replace workbench bases or make workbenches with your own top

15 products

Tables

Fixed-height, adjustable-height, and folding tables

82 products

Table Legs

Replace table legs or make tables with your own tabletop

5 products

Hydraulic Lifts

Convert fixed-height workbenches into adjustable-height workbenches

16 products

Electrical

Electrical Enclosure Positioning Arms

Hang your human-machine interface and swivel it around to save floor space and access equipment

12 products

Cord Grip Pliers

Assemble and install cord grips in a range of thread sizes

1 product

Conduit and Conduit Fittings

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

1 product

Electrical Connector Pliers

Firmly grasp electrical components without damaging them or surrounding parts

4 products

Manual Switches

Everything from toggle, push-button, and rocker switches to foot switches

10 products

Spark Plug Pliers

Grip boots firmly and remove them to access or inspect spark plugs

1 product

Facility and Grounds Maintenance

Pole Handles

Replace handles or extend the reach on tools like brooms, paint rollers, and window washers

41 products

Lubricating

Coolant Nozzle Adjustment Tools

Use as a lever to adjust the angle of coolant streams

1 product

Heating, Ventilation, and Air Conditioning

Duct Adjustment Sleeves

Fine-tune the length of your duct without precise measuring and cutting

43 products

Fluid Handling

Hose and Tube Pliers

Install, remove, or pinch off hose and tube

14 products

Hose Clamp Installation Tools

Tighten hose clamps over hose and fittings to secure them

23 products

Communication

Easels

Hold paper pads and boards up for display

4 products