S&W Thread Checker Sets

The Thread Checker is an accurate and easy-to-use thread verifier for both nuts and bolts. Conveniently assembled onto a wire loop, it is especially well suited for distinguishing between similar inch and metric threads.

Features:

• Each size has a nut and bolt checker on the same gauge
• Thread sizes are permanently stamped onto each gauge
• Inch gauges are clear zinc plated, metric gauges are black oxide
• Wire cable with loop for convenient hanging.

Set No. SWTC-S21
6-32, 6-40, 8-32, 10-24, 10-32, -20, -28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, -13, -20, 5/8-11, 5/8-18, -10, -16, 1-8, 1-12

Set No. SWTC-M21
M3x0.5, M4x0.7, M5x0.8, M6x1.0, M7x1.0, M8x1.0, M8x1.25, M10x1.0, M10x1.25, M10x1.5, M12x1.25, M12x1.5, M12x1.75, M14x1.5, M14x2.0, M16x1.5, M16x2.0, M20x1.5, M20x2.5, M24x2.0, M24x3.0

Set No. SWTC-26
6-32, 8-32, 10-24, 10-32, -20, -28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, -13, -20; M4x0.7, M5x0.8, M6x1.0, M7x1.0, M8x1.0, M8x1.25, M10x1.0, M10x1.25, M10x1.5, M12x1.25, M12x1.5, M12x1.75