Details

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Screw Ring Gauge - ISO Metric Fine Pitch

The ISO Metric Finee Pitch Screw Ring Gauge is a high-precision GO/NO GO thread ring gauge designed for accurate inspection of external ISO metric fine threads. Manufactured in accordance with ISO 1502, these precision gauges ensure reliable thread verification for production, quality control, calibration laboratories, engineering workshops, and manufacturing industries.

Designed for consistent and repeatable measurements, TTG Screw Ring Gauges help manufacturers verify thread accuracy, reduce rejects, and maintain international quality standards.

Features

• Manufactured in accordance with ISO 1502 standards.
• Designed for inspecting ISO Metric Fine Pitch external threads.
• Precision GO Ring and NO GO Ring configuration.
• Standard tolerance class 6g.
• Right-hand thread gauges supplied as standard.
• Optional tolerance classes available, including 4h, 8g, and custom specifications.
• High wear resistance for long-term industrial use.
• Suitable for production inspection, quality assurance, calibration laboratories, and engineering applications.

Available Metric Sizes

ISO METRIC FINE PITCH
SIZES			SCREW RING
			Solid			Solid
			GO Ring			NOT GO Ring
			ORDER NO.			ORDER NO.
M2.5 x 0.35			TRM2.5P0.35-G			TRM2.5P0.35-NG
M3 x 0.35			TRM3P0.35-G			TRM3P0.35-NG
M3.5 x 0.35			TRM3.5P0.35-G			TRM3.5P0.35-NG
M4 x 0.5			TRM4P0.5-G			TRM4P0.5-NG
M4.5 x 0.5			TRM4.5P0.5-G			TRM4.5P0.5-NG
M5 x 0.5			TRM5P0.5-G			TRM5P0.5-NG
M5.5 x 0.5			TRM5.5P0.5-G			TRM5.5P0.5-NG
M6 x 0.75			TRM6P0.75-G			TRM6P0.75-NG
M7 x 0.75			TRM7P0.75-G			TRM7P0.75-NG
M8 x 0.75			TRM8P0.75-G			TRM8P0.75-NG
M8 x 1			TRM8P1-G			TRM8P1-NG
M9 x 0.75			TRM9P0.75-G			TRM9P0.75-NG
M9 x 1			TRM9P1-G			TRM9P1-NG
M10 x 0.75			TRM10P0.75-G			TRM10P0.75-NG
M10 x 1			TRM10P1-G			TRM10P1-NG
M10 x 1.25			TRM10P1.25-G			TRM10P1.25-NG
M11 x 0.75			TRM11P0.75-G			TRM11P0.75-NG
M11 x 1			TRM11P1-G			TRM11P1-NG
M12 x 1			TRM12P1-G			TRM12P1-NG
M12 x 1.25			TRM12P1.25-G			TRM12P1.25-NG
M12 x 1.5			TRM12P1.5-G			TRM12P1.5-NG
M14 x 1			TRM14P1-G			TRM14P1-NG
M14 x 1.25			TRM14P1.25-G			TRM14P1.25-NG
M14 x 1.5			TRM14P1.5-G			TRM14P1.5-NG
M15 x 1			TRM15P1-G			TRM15P1-NG
M15 x 1.5			TRM15P1.5-G			TRM15P1.5-NG
M16 x 1			TRM16P1-G			TRM16P1-NG
M16 x 1.5			TRM16P1.5-G			TRM16P1.5-NG
M17 x 1			TRM17P1-G			TRM17P1-NG
M17 x 1.5			TRM17P1.5-G			TRM17P1.5-NG
M18 x 1			TRM18P1-G			TRM18P1-NG
M18 x 1.5			TRM18P1.5-G			TRM18P1.5-NG
M18 x 2			TRM18P2-G			TRM18P2-NG
M20 x 1			TRM20P1-G			TRM20P1-NG
M20 x 1.5			TRM20P1.5-G			TRM20P1.5-NG
M20 x 2			TRM20P2-G			TRM20P2-NG
M22 x 1			TRM22P1-G			TRM22P1-NG
M22 x 1.5			TRM22P1.5-G			TRM22P1.5-NG
M22 x 2			TRM22P2-G			TRM22P2-NG
M24 x 1			TRM24P1-G			TRM24P1-NG
M24 x 1.5			TRM24P1.5-G			TRM24P1.5-NG
M24 x 2			TRM24P2-G			TRM24P2-NG
M25 x 1			TRM25P1-G			TRM25P1-NG
M25 x 1.5			TRM25P1.5-G			TRM25P1.5-NG
M25 x 2			TRM25P2-G			TRM25P2-NG
M26 x 1.5			TRM26P1.5-G			TRM26P1.5-NG
M27 x 1			TRM27P1-G			TRM27P1-NG
M27 x 1.5			TRM27P1.5-G			TRM27P1.5-NG
M27 x 2			TRM27P2-G			TRM27P2-NG
M28 x 1			TRM28P1-G			TRM28P1-NG
M28 x 1.5			TRM28P1.5-G			TRM28P1.5-NG
M28 x 2			TRM28P2-G			TRM28P2-NG
M30 x 1			TRM30P1-G			TRM30P1-NG
M30 x 1.5			TRM30P1.5-G			TRM30P1.5-NG
M30 x 2			TRM30P2-G			TRM30P2-NG
M30 x 3			TRM30P3-G			TRM30P3-NG
M32 x 1.5			TRM32P1.5-G			TRM32P1.5-NG
M32 x 2			TRM32P2-G			TRM32P2-NG
M33 x 1.5			TRM33P1.5-G			TRM33P1.5-NG
M33 x 2			TRM33P2-G			TRM33P2-NG
M33 x 3			TRM33P3-G			TRM33P3-NG
M35 x 1.5			TRM35P1.5-G			TRM35P1.5-NG
M36 x 1.5			TRM36P1.5-G			TRM36P1.5-NG
M36 x 2			TRM36P2-G			TRM36P2-NG
M36 x 3			TRM36P3-G			TRM36P3-NG
M38 x 1.5			TRM38P1.5-G			TRM38P1.5-NG
M39 x 1.5			TRM39P1.5-G			TRM39P1.5-NG
M39 x 2			TRM39P2-G			TRM39P2-NG
M39 x 3			TRM39P3-G			TRM39P3-NG
M40 x 1.5			TRM40P1.5-G			TRM40P1.5-NG
M40 x 2			TRM40P2-G			TRM40P2-NG
M40 x 3			TRM40P3-G			TRM40P3-NG
M42 x 1.5			TRM42P1.5-G			TRM42P1.5-NG
M42 x 2			TRM42P2-G			TRM42P2-NG
M42 x 3			TRM42P3-G			TRM42P3-NG
M42 x 4			TRM42P4-G			TRM42P4-NG

Special Thread Gauges Available

In addition to standard ISO Metric Fine Pitch thread gauges, TTG also manufactures:

• Non-standard thread gauges
• Special pitch and diameter combinations
• Pre-plating thread gauges
• Special tolerance classes
• Custom thread gauges manufactured to customer drawings and specifications

Why Choose TTG Screw Gauges?

Manufacturers trust TTG Screw Gauges for delivering precision, durability, and reliable thread inspection performance. Every gauge is produced to stringent quality standards to ensure accurate GO/NO GO thread verification and long-term measurement consistency.