
| T Simple | Thread Ins | pecti | on Tools | Overall length L | Thread length T ℓ | hread+Neck length ℓn | Shank length ℓs | Shank dia. Ds | Size of square K | Length of square ℓk | ||
| Size | Class | Code | L (mm) | ℓ (mm) | ℓn (mm) | ℓs (mm) | Ds (mm) | K (mm) | ℓk (mm) | Type | Stock | |
| M15×1 | For Go For Not-go | 6H | ITM6015MG ITM6015MN | 95 | 12 10 | 47 | 48 | 12.5 | 10 | 13 | 3 4 | △ |
| M16×2 | For Go For Not-go | 6H | ITM6016QG ITM6016QN | 95 | 20 12 | 47 | 48 | 12.5 | 10 | 13 | 3 4 | △ |
| M16×1.5 | For Go For Not-go | 6H | ITM6016OG ITM6016ON | 95 | 20 12 | 47 | 48 | 12.5 | 10 | 13 | 3 4 | △ |
| M16×1 | For Go For Not-go | 6H | ITM6016MG ITM6016MN | 95 | 12 8 | 47 | 48 | 12.5 | 10 | 13 | 3 4 | △ |
| M17×1.5 | For Go For Not-go | 6H | ITM6017OG ITM6017ON | 100 | 19 10 | 49 | 51 | 14 | 11 | 14 | 3 4 | △ |
| M17×1 | For Go For Not-go | 6H | ITM6017MG ITM6017MN | 100 | 12 10 | 49 | 51 | 14 | 11 | 14 | 3 4 | △ |
| M18×2.5 | For Go For Not-go | 6H | ITM6018RG ITM6018RN | 100 | 25 16 | 49 | 51 | 14 | 11 | 14 | 3 4 | △ |
| M18×2 | For Go For Not-go | 6H | ITM6018QG ITM6018QN | 100 | 20 12 | 49 | 51 | 14 | 11 | 14 | 3 4 | △ |
| M18×1.5 | For Go For Not-go | 6H | ITM6018OG ITM6018ON | 100 | 20 12 | 49 | 51 | 14 | 11 | 14 | 3 4 | △ |
| M18×1 | For Go For Not-go | 6H | ITM6018MG ITM6018MN | 100 | 12 8 | 49 | 51 | 14 | 11 | 14 | 3 4 | △ |
| M20×2.5 | For Go For Not-go | 6H | ITM6020RG ITM6020RN | 105 | 25 16 | 55 | 50 | 15 | 12 | 15 | 5 6 | △ |
| M20×2 | For Go For Not-go | 6H | ITM6020QG ITM6020QN | 105 | 20 12 | 55 | 50 | 15 | 12 | 15 | 5 6 | △ |
| M20×1.5 | For Go For Not-go | 6H | ITM6020OG ITM6020ON | 105 | 20 12 | 55 | 50 | 15 | 12 | 15 | 5 6 | △ |
| M20×1 | For Go For Not-go | 6H | ITM6020MG ITM6020MN | 105 | 14 8 | 55 | 50 | 15 | 12 | 15 | 5 6 | △ |
| M22×2.5 | For Go For Not-go | 6H | ITM6022RG ITM6022RN | 115 | 33 16 | 60 | 55 | 17 | 13 | 16 | 5 6 | △ |
| M22×2 | For Go For Not-go | 6H | ITM6022QG ITM6022QN | 115 | 20 14 | 60 | 55 | 17 | 13 | 16 | 5 6 | △ |
| M22×1.5 | For Go For Not-go | 6H | ITM6022OG ITM6022ON | 115 | 20 14 | 60 | 55 | 17 | 13 | 16 | 5 6 | △ |
| M22×1 | For Go For Not-go | 6H | ITM6022MG ITM6022MN | 115 | 14 8 | 60 | 55 | 17 | 13 | 16 | 5 6 | △ |
| M24×3 | For Go For Not-go | 6H | ITM6024SG ITM6024SN | 120 | 30 20 | 65 | 55 | 19 | 15 | 18 | 5 6 | △ |
| M24×2 | For Go For Not-go | 6H | ITM6024QG ITM6024QN | 120 | 20 14 | 65 | 55 | 19 | 15 | 18 | 5 6 | △ |
| M24×1.5 | For Go For Not-go | 6H | ITM6024OG ITM6024ON | 120 | 20 14 | 65 | 55 | 19 | 15 | 18 | 5 6 | △ |
| M24×1 | For Go For Not-go | 6H | ITM6024MG ITM6024MN | 120 | 14 8 | 65 | 55 | 19 | 15 | 18 | 5 6 | △ |
| For Unified T | i hreads | |||||||||||
| №2-56UNC | For Go For Not-go | 2B | ITM2UN2EG ITM2UN2EN | 42 | 4.5 3.5 | 12 | 26 | 3 | 2.5 | 5 | 1 2 | △ |
| For Go | ITM2UN2DG | 4.5 | 1 | |||||||||
| №2-64UNF | For Not-go | 2B | ITM2UN2DN | 42 | 3.5 | 12 | 26 | 3 | 2.5 | 5 | 2 | △ |