Thread detective - Metal
These premium thread gauges measure both external and internal threads. Each gauge is clearly marked with diameter and pitch. The gauges are strung together to prevent lost sizes, but there is more than enough extra room to spin each into a hole when checking internal threads.
- Works on external and internal thread
- Includes standard threads and common fine threads
- Compact cylindrical design
- Color coded for US and Metric threads
- Includes US and Metric rulers for measuring fastener length
Small US
Standard US
Large US
Small Metric
Standard Metric
Large Metric
Sizes covered
- Small US: 1-64, 1-72, 2-56, 2-64, 3-48, 3-56, 4-40, 4-48, 5-40
- Standard US: 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
- Large US: 5/8-11, 5/8-18, 3/4-10, 3/4-16, 1-8, 1-12
- Small Metric: 1.2mm x 0.25, 1.6mm x 0.35, 1.6mm x 0.20, 1.8mm x 0.35, 2mm x 0.40, 2mm x 0.25, 2.5mm x 0.45, 2.5mm x 0.35, 3mm x 0.35, 3mm x 0.50, 3.5mm x 0.60, 3.5mm x 0.35
- Standard Metric: 4mm x 0.7, 5mm x 0.8, 6mm x 1.0, 8mm x 1.25, 8mm x 1.0, 10mm x 1.5, 10mm x 1.25, 10mm x 1.0, 12mm x 1.75, 12mm x 1.5, 12mm x 1.25
- Large Metric: 14mm x 1.5, 14mm x 2.0, 16mm x 1.5, 16mm x 2.0, 20mm x 1.5, 20mm x 2.5, 24mm x 2.0, 24mm x 3.0