FANAR Thread Plug Gauge GO/NOGO M4 x 0.7 6H Metric Coarse

Precision thread inspection demands a gauge that combines exacting geometry with enduring hardness. The FANAR S3-302161-0040 delivers with a high-grade tool steel body hardened to 60-62 HRC, ensuring reliable GO/NOGO verification of M4 x 0.7 internal threads to tolerance class 6H.

Overview

This double-ended thread plug gauge is manufactured to ISO 1502 and finished to Class X accuracy, making it an indispensable tool for quality control labs and workshop environments. The GO member checks the maximum material condition, while the NOGO member verifies the minimum, providing a complete assessment of thread conformity. A precision-lapped surface finish reduces friction and wear, while the oil coating protects against corrosion during storage and handling.

What stands out

• Hardened to 60-62 HRC for long service life and resistance to abrasive wear.
• Double-ended design with GO and NOGO members for rapid, unambiguous inspection.
• Class X accuracy per ISO 1502 ensures compliance with international thread standards.
• Taperlock handle provides a secure, ergonomic grip for precise manipulation.
• Oil-coated surface offers corrosion protection in demanding shop environments.

Technical details

• Gauge Type: Thread Plug Gauge
• Gauge Standard: GO/NOGO
• Thread Type: Metric Coarse
• Nominal Diameter: 4 mm
• Thread Pitch: 0.7 mm
• Tolerance Class: 6H
• Material: High-grade Tool Steel
• Hardness: 60-62 HRC
• Manufacturing Standard: ISO 1502
• Accuracy Class: Class X
• Application: Inspection of Internal Threads
• Surface Finish: Precision Lapped
• Handle Type: Taperlock
• Calibration: Traceable to National Standards (optional certificate)
• Corrosion Protection: Oil-coated
• Usage Environment: Workshop, Quality Control Lab

Our verdict

The FANAR S3-302161-0040 is a professional-grade thread gauge that delivers consistent, repeatable results. Its robust construction and adherence to ISO 1502 make it a trustworthy choice for any precision machining or quality assurance operation.