S.T.I. Thread Plug Gages

Helical coil ( STI ) Plug Gages are used to gage threaded holes prior to insertion of screw thread inserts. Screw thread inserts are used to repair a damaged thread or to provide stronger thread assembly. All Helical Coil ‐ STI thread plug gages are manufactured of oil hardened tool steel to a class X tolerance. Class W tolerance thread plug gages priced on request.

SKU Description Size Go Length NoGo Length Pitch Diameter Each
STI-#5-40-2B-GO #5-40 UNC 2B STI Go Plug-Class X #55/167/32.1413"
$51.00
STI-#5-40-2B-NGO #5-40 UNC 2B STI NoGo Plug-Class X #55/167/32.1438"
$51.00
STI-#5-40-2B-D/E #5-40 UNC 2B STI Go/NoGo Thread Plug Gage w/handle-Class X #55/167/32.1413" - .1438"
$114.00
STI-#5-40-3B-GO #5-40 UNC 3B STI Go Plug-Class X #55/167/32.1413"
$51.00
STI-#5-40-3B-NGO #5-40 UNC 3B STI NoGo Plug-Class X #55/167/32.1430"
$51.00
STI-#5-40-3B-D/E #5-40 UNC 3B STI Go/NoGo Thread Plug Gage w/handle-Class X #55/167/32.1413" - .1430"
$114.00
STI-#6-32-2B-GO #6-32 UNC 2B STI Go Plug-Class X #613/329/32.1583"
$50.00
STI-#6-32-2B-NGO #6-32 UNC 2B STI NoGo Plug-Class X #613/329/32.1611"
$50.00
STI-#6-32-2B-D/E #6-32 UNC 2B STI Go/NoGo Thread Plug Gage w/handle-Class X #613/329/32.1586" - .1611"
$112.00
STI-#6-32-3B-GO #6-32 UNC 3B STI Go Plug-Class X #613/329/32.1583"
$50.00
STI-#6-32-3B-NGO #6-32 UNC 3B STI NoGo Plug-Class X #613/329/32.1601"
$50.00
STI-#6-32-3B-D/E #6-32 UNC 3B STI Go/NoGo Thread Plug Gage w/handle-Class X #613/329/32.1583" - .1601"
$112.00
STI-#6-40-2B-GO #6-40 UNF 2B STI Go Plug-Class X #613/329/32.1543"
$50.00
STI-#6-40-2B-NGO #6-40 UNF 2B STI NoGo Plug-Class X #613/329/32.1569"
$50.00
STI-#6-40-2B-D/E #6-40 UNF 2B STI Go/NoGo Thread Plug Gage w/handle-Class X #613/329/32.1543" - .1569"
$112.00
STI-#6-40-3B-GO #6-40 UNF 3B STI Go Plug-Class X #613/329/32.1543"
$50.00
STI-#6-40-3B-NGO #6-40 UNF 3B STI NoGo Plug-Class X #613/329/32.1560"
$50.00
STI-#6-40-3B-D/E #6-40 UNF 3B STI Go/NoGo Thread Plug Gage w/handle-Class X #613/329/32.1543" - .1560"
$112.00
STI-#8-32-2B-GO #8-32 UNC 2B STI Go Plug-Class X #813/329/32.1843"
$50.00
STI-#8-32-2B-NGO #8-32 UNC 2B STI NoGo Plug-Class X #813/329/32.1872"
$50.00
STI-#8-32-2B-D/E #8-32 UNC 2B STI Go/NoGo Thread Plug Gage w/handle-Class X #813/329/32.1843" - .1872"
$112.00
STI-#8-32-3B-GO #8-32 UNC 3B STI Go Plug-Class X #813/329/32.1843"
$50.00
STI-#8-32-3B-NGO #8-32 UNC 3B STI NoGo Plug-Class X #813/329/32.1862"
$50.00
STI-#8-32-3B-D/E #8-32 UNC 3B STI Go/NoGo Thread Plug Gage w/handle-Class X #813/329/32.1843" - .1862"
$112.00
STI-#8-36-2B-GO #8-36 UNF 2B STI Go Plug-Class X #813/329/32.1821"
$50.00
STI-#8-36-2B-NGO #8-36 UNF 2B STI NoGo Plug-Class X #813/329/32.1849"
$50.00
STI-#8-36-2B-D/E #8-36 UNF 2B STI Go/NoGo Thread Plug Gage w/handle-Class X #813/329/32.1821" - .1849"
$112.00
STI-#8-36-3B-GO #8-36 UNF 3B STI Go Plug-Class X #813/329/32.1821"
$50.00
STI-#8-36-3B-NGO #8-36 UNF 3B STI NoGo Plug-Class X #813/329/32.1840"
$50.00
STI-#8-36-3B-D/E #8-36 UNF 3B STI Go/NoGo Thread Plug Gage w/handle-Class X #813/329/32.1821" - .1840"
$112.00
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