Position Indicators | McMaster-Carr

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3,000 Products

Measuring and Inspecting

Position Indicators

Track components on rotating spindles or lead screws to help adjust machinery quickly and precisely

47 products

Linear Scales

Measure and display the position of tools on machines, such as lathes, saws, and drill presses

40 products

Threaded Hole Location Gauges

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

70 products

Angle Indicators

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

24 products

Depth Gauges

Reach into slots, counterbores, and other holes to measure depth

35 products

Machine Tool Indicators

Find the exact edge of a workpiece without math or guesswork to quickly align your machining setup

6 products

Height Gauges

Measure an object's height and mark workpieces for machining

34 products

Height Gauge Calibrators

Ensure height gauges are accurate

3 products

Staff Gauges

Typically mounted to walls and tanks for measuring the level of liquids, such as water, fuel, and oil

32 products

Gauging Pastes

Cover your tank-level ruler and change color to indicate the level of water or gasoline in your tank

2 products

Gauge Blocks

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

738 products

Machine Tool Indicator Contact Points

Replace the contact point on your machine tool indicator

3 products

Liquid-Level Tape Measures

Lower into deep containers, such as tanks, to check the level of oil and other fluids

61 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

Plumb Bobs

Suspend from a string to create a vertical reference line

11 products

Levels

Ensure surfaces are completely horizontal or vertical

26 products

Level Mounts

Strap to nonmagnetic surfaces to attach a magnetic level

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

Rivet Hole Locators

Mark even spacing for rivets and other fasteners before you drill

1 product

Building and Machinery Hardware

Hand Wheels

Rotate to adjust machinery, valves, drill presses, and other equipment

7 products

Indicating Knobs

Control devices and view settings at a glance

89 products

Cam Latches

Secure drawers, cabinets, mailboxes, and other enclosures

88 products

Slide-Bolt Locks

Slide the bolt and lock with a key to secure doors, gates, and cabinets

2 products

Electrical

Sensor Switches

Detect moving objects from a distance, triggering a circuit to open or close

682 products

Linear Motion Position-Measuring Transmitters

Measure the position of an object moving in a straight line; also known as string pots

8 products

IO Link Programmers

Configure your IO Link devices without a PC, outlet, or separate software

1 product

Development Board Sensor Modules

Transform your development board into everything from an airflow monitor to a motion detector

5 products

Safety Switches

Protect people by cutting power to machines when access doors open; also known as interlock switches

3 products

Sensor Switch Transmitters

Monitor objects, switch equipment on and off, and send data to control systems with a single device

15 products

Fabricating and Machining

3D Printer Probes

Map the ups and downs of print surfaces so printers extrude at the proper height

1 product

Fluid Handling

Gauge Glass

Create or repair liquid-level gauges to monitor fluid levels in containers

129 products

Liquid-Level Gauges

Monitor fluid levels in containers

574 products

Liquid-Level Transmitters

Send liquid-level data to logging and monitoring equipment

28 products

Material Handling

Robot Tool Changer Calibration Styli

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

1 product

Sealing

Gauge Glass Gaskets

Seal the glass on level indicators to monitor liquids without leaks

14 products

Fastening and Joining

Tungsten Electrode Stick-Out Gauges

Measure the distance tungsten electrodes stick out from your nozzle for consistent TIG welding

2 products