Details

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Screw Plug Gauge - ISO Metric Coarse Pitch 

The ISO Metric Coarse Pitch Screw Plug Gauge is a high-precision thread inspection gauge des igned for checking the accuracy of internal ISO metric coarse threads. Manufactured in accordance with ISO 1502, these screw plug gauges provide reliable GO and NO GO thread inspection for quality control, machining, production, and engineering applications.

TTG Metric Screw Plug Gauges are manufactured to Class 6H as standard (except M1, M1.1 and M1.2, which are supplied in Class 5H) and are suitable for inspecting right-hand internal metric threads. These gauges help ensure thread conformity, improve production consistency, and reduce costly manufacturing errors.

Features

• Manufactured according to ISO 1502 standards
• Standard tolerance Class 6H (M1, M1.1 & M1.2 supplied as Class 5H)
• Available in GO & NO GO configurations
• Right-hand thread gauges as standard
• High accuracy and excellent wear resistance
• Designed for precision inspection of internal metric coarse threads
• Suitable for production, quality assurance, calibration, and machine shops

Custom Thread Gauges Available

In addition to standard ISO metric coarse pitch gauges, TTG also manufactures custom thread gauges to meet specific application requirements, including:

• Class 5H, 7H, 6G and other tolerance classes
• Non-standard thread sizes
• Special pitch and diameter combinations
• Pre-plating thread gauges
• Custom thread gauges manufactured to customer drawings
• Special inspection gauges for unique industrial applications

Available Sizes

A comprehensive range of ISO Metric Coarse Pitch sizes is available, including:

ISO METRIC COARSE PITCH

SIZES

SCREW PLUG

GO & NOT GO

GO or NOT GO

GO & NOT GO

D/E (Style E)

S/E*

D/E (EZH Handle)

ORDER NO.

ORDER NO.

ORDER NO.

M1 x 0.25 *

TFMC1

TFMC1-

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M1.1 x 0.25 *

TFMC1.1

TFMC1.1-

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M1.2 x 0.25 *

TFMC1.2

TFMC1.2-

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M1.4 x 0.3

TFMC1.4

TFMC1.4-

TFMC1.4-EZH

M1.6 x 0.35

TFMC1.6

TFMC1.6-

TFMC1.6-EZH

M1.7 x 0.35

TFMC1.7

TFMC1.7-

TFMC1.7-EZH

M1.8 x 0.35

TFMC1.8

TFMC1.8-

TFMC1.8-EZH

M2 x 0.4

TFMC2

TFMC2-

TFMC2-EZH

M2.2 x 0.45

TFMC2.2

TFMC2.2-

TFMC2.2-EZH

M2.5 x 0.45

TFMC2.5

TFMC2.5-

TFMC2.5-EZH

M2.6 x 0.45

TFMC2.6

TFMC2.6-

TFMC2.6-EZH

M3 x 0.5

TFMC3

TFMC3-

TFMC3-EZH

M3.5 x 0.6

TFMC3.5

TFMC3.5-

TFMC3.5-EZH

M4 x 0.7

TFMC4

TFMC4-

TFMC4-EZH

M4.5 x 0.75

TFMC4.5

TFMC4.5-

TFMC4.5-EZH

M5 x 0.8

TFMC5

TFMC5-

TFMC5-EZH

M6 x 1

TFMC6

TFMC6-

TFMC6-EZH

M7 x 1

TFMC7

TFMC7-

TFMC7-EZH

M8 x 1.25

TFMC8

TFMC8-

TFMC8-EZH

M9 x 1.25

TFMC9

TFMC9-

TFMC9-EZH

M10 x 1.5

TFMC10

TFMC10-

TFMC10-EZH

M11 x 1.5

TFMC11

TFMC11-

TFMC11-EZH

M12 x 1.75

TFMC12

TFMC12-

TFMC12-EZH

M14 x 2

TFMC14

TFMC14-

TFMC14-EZH

M16 x 2

TFMC16

TFMC16-

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M18 x 2.5

TFMC18

TFMC18-

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M20 x 2.5

TFMC20

TFMC20-

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M22 x 2.5

TFMC22

TFMC22-

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M24 x 3

TFMC24

TFMC24-

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M27 x 3

TFMC27

TFMC27-

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M30 x 3.5

TFMC30

TFMC30-

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M33 x 3.5

TFMC33

TFMC33-

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M36 x 4

TFMC36

TFMC36-

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M39 x 4

TFMC39

TFMC39-

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M42 x 4.5

TFMC42

TFMC42-

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• For single end, please specify G (Go) or NG (Not Go)

• * plug gauge to 5H