INSIZE thread gauge set 60° metric/UNified 30 pcs MWGc (model 4820-230)

The INSIZE thread gauge set 60° metric/Unified 30 pcs MWGc (model 4820-230) is a compact collection of sample gauges designed for visual and tactile verification of 60° thread profiles in both metric and Unified (inch) standards. The set provides a range of reference pieces to check thread form and pitch, helping to quickly determine conformity of manufactured screws, nuts and tapped holes during inspection and maintenance operations.

Advantages

The set consolidates common metric and Unified 60° thread samples in one organized kit, enabling faster comparison without the need for multiple separate gauges. Hardened reference pieces maintain profile accuracy under regular workshop use. Lightweight and portable, the set is appropriate for bench inspection, on-site maintenance and production line spot checks, providing a simple, reliable method for initial thread assessment.

Suitable for

• Quality control in manufacturing and assembly
• Inspection labs performing thread form and pitch verification
• Maintenance teams checking threaded components on machinery
• Toolrooms and workshops for incoming part inspection and setup

Key specifications

• Thread profile angle: 60°
• Standards covered: metric and Unified (inch) 60° threads
• Number of gauge samples: 30 pieces
• Typical applications: comparison of thread form and pitch on external and internal threads
• Construction: hardened metal reference gauges for durability and stable profile retention

How to use

Select the sample gauge that corresponds to the nominal thread size or pitch you need to check. Place the reference gauge against the thread to be inspected and visually compare the fit and contact along the flank and root. For external threads, engage the sample on the thread form; for internal threads, insert the appropriate internal sample and check seating and clearance. Use under adequate lighting and, when necessary, magnification to assess fine pitch conformity. Record discrepancies and, if required, measure with calibrated tools for definitive pass/fail decisions.

Usage recommendations

The gauges are intended for fast visual and tactile verification, not for precision measurement. Clean threads and gauges before use to avoid false indications. Store the samples in a dry, protected case to preserve profile integrity and prevent corrosion.