Alignment Tools | McMaster-Carr

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How can we improve?

3,256 Products

Measuring and Inspecting

Alignment Pins

Line up holes in sheet metal, I-beams, and angle irons for bolting, riveting, and welding

148 products

Shaft Alignment Kits

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

9 products

Alignment Lasers

Project a line or dot as a reference point to ensure equipment is properly positioned

37 products

Levels

Ensure surfaces are completely horizontal or vertical

189 products

Band Saw Blade Alignment Gauges

Keep band saw blades straight between guides

1 product

Laser Levels

Project level references onto surfaces when installing drop ceilings, pipe, or conveyors

20 products

Plumb Bobs

Suspend from a string to create a vertical reference line

11 products

Pipe Flange Aligners

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

17 products

Lathe Alignment Bars

Confirm that your lathe headstock and tailstock are aligned for accurate machining

1 product

Laser Directing Components

Turn or split dot lasers to point them where needed

12 products

Plumb Bob Reels

Retrieve your plumb bob without tangles and quickly retract the cord

3 products

Level Mounts

Strap to nonmagnetic surfaces to attach a magnetic level

1 product

Level Vials

Replace vials in levels or equipment

19 products

Square Holding Clamps

Position squares for repeat checking and marking

1 product

Squares

Check 90° angles during layout work with combination, angle, or pipefitters' squares

125 products

Angle Indicators

Align pipe and other equipment by measuring angle, level, or tilt

24 products

Threaded Hole Location Gauges

Pinpoint the true center of threaded holes to precisely align and measure parts

70 products

Bench Centers

Inspect cylindrical parts for irregularities that could cause wobbles or vibrations

5 products

Laser Targets

Stick to uneven, clear, or mirrored surfaces to make your laser beam easier to see

2 products

Combination Square Blades

Connect to a combination square head to create a combination square

18 products

Coordinate Measuring Machine Plates and Fixtures

Raise workpieces and position them on a fixture plate

125 products

Squareness Gauges

Check frames and machined parts to see if they are leaning or uneven

3 products

Combination Square Heads

Attach combination square blades to form a combination square

28 products

Coordinate Measurement Machine Probes

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

24 products

Calibration Squares

Lay horizontally or vertically on CNC machines to check the position of tools with high precision

2 products

Center Punch/Angle Indicators

Find the center of pipe and other parts and determine setup angles on milling machines and grinders

3 products

Fabricating and Machining

Clamps

Hold workpieces securely in place

751 products

Vises

Secure workpieces in place

371 products

Electronic-Component Positioning Stands

Pin components against a circuit board to free up your hands for soldering

1 product

Dovetail Blanks

Machine a blank workpiece with precut dovetails and locating slots for easy setup

5 products

Magnetic Workholding Plates

Keep metal workpieces firmly in place for grinding, drilling, and electrical discharge machining

72 products

Fixture Clamps

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

321 products

Step Blocks

Support setup clamps for quick height adjustments

10 products

Pin Removal Blocks

Remove a range of pin sizes from workpieces by tapping them into holes with a punch and hammer

1 product

Fixture Tables

Add clamps, brackets, and other components to build fixtures for welding and assembly

42 products

Fixture Squares

Build different fixtures on multiple sides of the same block

18 products

V-Blocks

Hold round workpieces

40 products

Locating Pins

Install in fixturing plates or tables to position and secure workpieces

209 products

Slotted Bushings

Pair with a standard bushing to prevent alignment pins from binding in your fixture

10 products

Fixture Kits

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

48 products

Spring Locating Pins

Apply side force to workpieces to clamp them in place

61 products

T-Slot Clamp Supports

Hold up clamps to keep them in place when they're unclamped

7 products

Parallel Keepers

Keep parallels in place against vise jaws

2 products

Index Plungers

Align parts that have mating bushings for more precision than standard spring plungers

6 products

Work Supports

Reduce vibration and deformation by adjusting to secure your workpiece

16 products

Parallels

Raise workpieces above your vise to create clearance for cutting tools

22 products

Alignment Locks

Precisely align your mold halves

25 products

Power Transmission

Roller Chain Alignment Tools

Align sprockets and roller chain during installation and adjustment

1 product

Rod Alignment Couplers

Reduce wear on bearings and seals by flexing when the cylinder and load aren't precisely even

94 products

Material Handling

Railcar Rerailers

Guide derailed wheels back onto tracks

2 products

Railway Track Aligners

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

1 product

Robot Tool Calibration Styli

Calibrate robot arm movement for precision in tasks such as attaching fasteners

1 product

Forklift Fork Level Indicators

Mount to your forklift's mast to check if forks are level from the driver's seat

1 product

Fluid Handling

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

1 product

Fastening and Joining

Standoffs

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

18 products

Building and Machinery Hardware

Tripods

Stabilize cameras and other equipment

4 products