OverallGONOT-GORecessThread+NeckShank ShankSize ofLength of
lengthpartpartlengthlengthlength dia.squaresquare
LℓnℓsDsKℓk

SITD Simple Thread Inspection Tools, Tandem Type

SizeClassCodeLℓnℓsDsKℓkType Stock
123
(mm)(mm)(mm)(mm)(mm)(mm)(mm)(mm)(mm)

M15 × 1 △

6H ITDM6015M 95 18.9 5 3 47 48 12.5 10 13 2

M16 × 2 △

6H ITDM6016Q 95 10 10 6 47 48 12.5 10 13 2

M16 × 1.5 △

6H ITDM6016O 95 14 7.5 4.5 47 48 12.5 10 13 2

M16 × 1 △

6H ITDM6016M 95 18 5 3 47 48 12.5 10 13 2

M17 × 1.5 △

6H ITDM6017O 100 21.9 7.5 4.5 49 51 14 11 14 2

M17 × 1 △

6H ITDM6017M 100 25.9 5 3 49 51 14 11 14 2

M18 × 2.5 △

6H ITDM6018R 100 13 12.5 7.5 49 51 14 11 14 2

M18 × 2 △

6H ITDM6018Q 100 17 10 6 49 51 14 11 14 2

M18 × 1.5 △

6H ITDM6018O 100 21 7.5 4.5 49 51 14 11 14 2

M18 × 1 △

6H ITDM6018M 100 25 5 3 49 51 14 11 14 2

For Unified Threads

Size ClassCode LℓnℓsDsKℓkType Stock
123
(mm)(mm)(mm)(mm)(mm)(mm)(mm)(mm)(mm)
No.2-56UNC2BITDM2UN2E424.42.31.4122632.551
No.2-64UNF2BITDM2UN2D424.921.2122632.551
No.3-48UNC2BITDM2UN3F463.92.61.6142832.551
No.3-56UNF2BITDM2UN3E464.42.31.4142832.551
No.4-40UNC2BITDM2UN4H463.93.21.9142543.261
No.4-48UNF2BITDM2UN4F464.82.61.6142543.261
No.5-40UNC2BITDM2UN5H525.93.21.916285471
No.5-44UNF2BITDM2UN5G526.42.91.716285471
No.6-32UNC2BITDM2UN6J524.642.416285471
No.6-40UNF2BITDM2UN6H525.93.21.916285471
No.8-32UNC2BITDM2UN8J606.642.421325.54.571
No.8-36UNF2BITDM2UN8I607.43.52.121325.54.571
No.10-24UNC2BITDM2UNAM627.55.33.2263264.571
No.10-32UNF2BITDM2UNAJ629.642.4263264.571
No.12-24UNC2BITDM2UNCM626.55.33.2263264.571
No.12-28UNF2BITDM2UNCK627.84.52.7263264.571
1/4-20UNC2BITDM2U04N7010.26.43.834366.2582
1/4-28UNF2BITDM2U04K7013.24.52.734366.2582
5/16-18UNC2BITDM2U05O707.77.14.234366.2582
5/16-24UNF2BITDM2U05M7010.55.33.234366.2582
3/8-16UNC2BITDM2U06P7510.77.94.8373875.582
3/8-24UNF2BITDM2U06M7514.95.33.2373875.582
7/16-14UNC2BITDM2U07Q8212.39.15.440428.56.592
7/16-20UNF2BITDM2U07N8216.66.43.840428.56.592
1/2-13UNC2BITDM2U08R8811.49.85.9434510.58112
1/2-20UNF2BITDM2U08N8816.96.43.8434510.58112
9/16-12UNC2BITDM2U09S9510.510.66.4474812.510132
9/16-18UNF2BITDM2U09O9516.27.14.2474812.510132
5/8-11UNC2BITDM2U10U10016.411.56.949511411142
5/8-18UNF2BITDM2U10O10023.57.14.249511411142