Thread Plug Gauge INSIZE MSBG GO/NOGO M6 6H (model 4130-6)

INSIZE MSBG GO/NOGO thread plug gauge for M6 6H internal threads, model 4130-6, is a precision inspection tool designed for tactile verification of M6 internal threads. The gauge provides quick pass/fail assessment of thread acceptance against the M6 6H tolerance class and is intended for repeated use in workshops, inspection benches, and quality control processes where simple, reliable go/no-go checking is required.

Advantages

The GO/NO GO design allows immediate determination of whether an internal thread meets the specified M6 6H tolerance without the need for measurement instruments. Constructed to provide consistent tactile feedback, the gauge supports rapid inspections and reduces subjective interpretation. Its compact, hand-held form factor makes it suitable for use on production lines and at bench inspection stations, enabling efficient screening of threaded components.

Suitable for

• Routine quality control of M6 internal threads
• Incoming inspection of threaded parts and fasteners
• Shop-floor checks during machining and assembly
• Use on inspection benches for batch verification

Key specifications

• Thread size: M6
• Tolerance class: 6H
• Function: GO/NO GO (pass/fail) thread plug gauge for internal threads
• Intended use: tactile verification of thread acceptance
• Form factor: hand-held plug gauge

How to use

Insert the GO end of the thread plug gauge into the internal thread; it should enter smoothly if the thread meets the lower limit of the tolerance. Attempt to insert the NO GO end; it must not fully engage if the thread is within the upper limit of the tolerance. Perform inspections by hand without forcing either end; record pass/fail results and segregate non-conforming parts for further assessment or rework. Use appropriate handling to avoid damaging gauge threads and keep inspection conditions consistent to ensure repeatability.

Usage recommendations

Store the gauge in a protective case or drawer to prevent nicks and contamination. Regularly inspect the gauge for wear and compare against calibration standards or reference gauges as part of a metrology program. Clean threads before use and avoid applying excessive force during checks to maintain accuracy and extend service life.