Thread Detective

For your convenience, they provide extra-long wire rope for those hard to reach places, as well as loops on each end for convenient hanging.

Miniature Thread Identifier:  Inch Thread Identifiers contain nut and bolt sizes 1-64, 1-72, 2-56, 2-64, 3-48, 3-56, 4-40, 4-48, and 5-40.

Metric Thread Identifiers contain nut and bolt sizesM1.2×0.25, M1.6×0.35, M1.6×0.20, M1.8×0.35, M2x0.40, M2x0.25, M2.5×0.45, M2.5×0.35, M3x0.35, M3x0.50, M3.5×0.60, M3.5×0.35.

Standard Thread Identifier:  Inch Thread Identifiers contain nut and bolt sizes of 6-32, 8-32, 10-24, 10-32, 1/4-20, 1/4-28, 5/16-18, 5/16-24, 3/8-16, 3/8-24, 7/16-14, 7/16-20, 1/2-13, 1/2-20.

Metric Thread Identifiers contain nut and bolt sizes of M4x0.7, M5x0.8, M6x1.0, M8x1.0, M8x1.25, M10x1.0, M10x1.25, M10x1.50, M12x1.25, M12x1.5, M12x1.75.

Jumbo Thread Identifier:  Inch Thread Identifiers contain nut and bolt sizes of 5/8-11, 5/8-18, ¾-10, ¾-16, 1-8, 1-12.

Metric Thread Identifiers contain nut and bolt sizes of M14 X 1.5, M14 X 2.0, M16 X 1.5, M16 X 2.0, M20 X 1.5, M20 X 2.5, M24 X 2.0, M24 X 3.0.

We have packaged a couple of sets together to make the selection easier.  Keep in mind that more than 50% off all nuts and bolts used in US manufacturing are now metric.