Thread DetectiveĀ® Metal

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
US Thread Detective
Small US
US Thread Detective
Standard US
US Thread Detective
Large US
US Thread Detective
Small Metric
US Thread Detective
Standard Metric
US Thread Detective
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

Click on a product # for additional info

Prod.
#
Size and Size range Buy Each Buy Bag Bag
Qty

US

26350 Small, #1 - #5
$17.00
Add

$17.00 each
$75.00 / 5

$75.00
Add
5
16988 Standard, #6 - 1/2"
$17.00
Add

$17.00 each
$75.00 / 5

$75.00
Add
5
26351 Large, 5/8" - 1"
$17.00
Add

$17.00 each
$75.00 / 5

$75.00
Add
5

Metric

26352 Small, 1.2mm - 3.5mm
$17.00
Add

$17.00 each
$75.00 / 5

$75.00
Add
5
16989 Standard, 4mm - 12mm
$17.00
Add

$17.00 each
$75.00 / 5

$75.00
Add
5
26353 Large, 14mm - 24mm
$17.00
Add

$17.00 each
$75.00 / 5

$75.00
Add
5