Gauge Pins | McMaster-Carr

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System of Measurement

Plug Gauge Size

Diameter

Gauge Measurement Type

No-Go

Size-Checking Gauge Class

Length

Increment

Shaft Type

Certificate Type

Accuracy Certificate Traceable to NIST

Calibration Certificate Traceable to NIST

End Type

Finish

Material

Surface Smoothness, RMS

Overall Length

Thread Size

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Container Type

Specifications Met

Number of Pieces

Hardness

RoHS

Compliant with Exemptions

Fastener Head Type

REACH

Pitch

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

3,023 Products

Plug Gauges

Class Z Plug Gauges

Check hole diameters to a tolerance of 0.0001" or 0.0025 mm

32 products

Class X Plug Gauges

Check hole diameters to a tolerance of 0.00004" or 0.001 mm

40 products

Wear-Indicating Plug Gauges

Show wear patterns so you can tell when you need to calibrate or replace

8 products

Plug Gauge Sets

Keep multiple sizes of plug gauges on hand

200 products

Plug Gauges with Handle

Take go and no-go measurements with a single tool

35 products

Go/No-Go Hex Plug Gauges with Handle

Confirm hex drives on socket head screws are within tolerance

37 products

Target-Size Plug Gauge Sets

A range of sizes to check hole size and location and set micrometers

65 products

Ball-End Plug Gauges with Handle

The thin stem flexes to check holes and cavities even if they are bent or curved

56 products

Go/No-Go Threaded Plug Gauges with Handle

The handle gives you a good grip to quickly thread and unthread go and no-go gauges

234 products

Threaded Plug Gauges

Test if internal threads fall within tolerance

140 products

Threaded Plug Gauges with Handle for Pipe Threads

Verify whether pipe fitting threads fall within tolerance

65 products

Go/No-Go Helical Insert Threaded Plug Gauges with Handle

Check that holes tapped for helical threads are within tolerance

32 products

Acme Threaded Plug Gauges with Handle

Determine if parts with internal Acme threads are within tolerance

20 products

Go/No-Go Left-Hand Threaded Plug Gauges with Handle

Check that left-hand threads fall within tolerance

58 products

Other Products

Core Pins

Add to molds and pour in plastic to form holes in finished parts

1,274 products

Ejector Pins

Push finished parts out of molds

361 products

Plug Gauge Handles

Add both a go gauge and a no-go gauge to create a custom tool for checking hole diameters

12 products

Threaded Hole Location Gauges

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

70 products

Punch Pins

Use with press dies to punch 1/8" and larger holes; modify to fit your application

30 products

Die Bushings

Guide pins and punches in molds and stamping dies or reduce friction between ejector pins and plates

102 products

Ejector Sleeves

Use with mold pins to form holes, bosses, and other features in parts

39 products

Plug Gauge Drivers

Test thread tolerance in seconds to save time during high-volume work

7 products

Ejector Blades

Flat end pushes thin-walled parts out of molds better than ejector pins

106 products