Overall Thread Thread+Neck Shank Shank Size of Length of length length length length dia. square square L ℓ ℓn ℓs Ds K ℓk HT Hand Taps Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock (for blind hole) Spiral Fluted Taps (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes 7/8-20UNEF P3 TNMRU14N1 1.5P 115 33 - 55 17 13 16 4 7 △ TNMSU16X5 5P 1 -8UNC P4 125 39 - 58 19 15 18 4 7 ○ TNMSU16X1 1.5P TNMSU16S5 5P (for through hole) Spiral Fluted Taps 1 -12UNF P4 125 39 - 58 19 15 18 4 7 ○ TNMSU16S1 1.5P TNMSU16Q5 5P 1 -14UNS P4 125 39 - 58 19 15 18 4 7 △ TNMSU16Q1 1.5P TNMRU16N5 5P (for through hole) Spiral Pointed Taps 1 -20UNEF P3 125 39 - 58 19 15 18 4 7 △ TNMRU16N1 1.5P TNMTU18Y5 5P 1 1/8-7UNC P5 135 46 - 62 23 17 20 4 7 △ TNMTU18Y1 1.5P TNMTU20Y5 5P 1 1/4-7UNC P5 145 46 - 67 24 19 22 4 7 △ Hand Taps TNMTU20Y1 1.5P TNMTU20X5 5P 1 1/4-8UN P5 145 46 - 67 24 19 22 4 7 △ TNMTU20X1 1.5P TNMSU20S5 5P 1 1/4-12UNF P4 145 46 - 67 24 19 22 4 7 △ Carbide Taps Cemented TNMSU20S1 1.5P TNMTU22Z5 5P 1 3/8-6UNC P5 155 52 - 71 28 21 24 4 7 △ TNMTU22Z1 1.5P TNMTU22X5 5P 1 3/8-8UN P5 155 52 - 71 28 21 24 4 7 △ TNMTU22X1 1.5P Roll Taps TNMSU22S5 5P 1 3/8-12UNF P4 155 52 - 71 28 21 24 4 7 △ TNMSU22S1 1.5P TNMTU24Z5 5P 1 1/2-6UNC P5 165 52 - 76 30 23 26 4 7 △ TNMTU24Z1 1.5P TNMSU24S5 5P Simple Inspection Tools Special Thread Taps 1 1/2-12UNF P4 165 52 - 76 30 23 26 4 7 △ TNMSU24S1 1.5P TNMUU2805 5P 1 3/4-5UNC P6 180 59 - 83 35 26 30 4 7 △ TNMUU2801 1.5P TNMSU28S5 5P Pipe Taps 1 3/4-12UN P4 180 59 - 83 35 26 30 4 7 △ TNMSU28S1 1.5P For Screw Threads used on Sewing Machines Size Class Code Chamfer L ℓ ℓn ℓs Ds K ℓk No. of Type Stock (mm) (mm) (mm) (mm) (mm) (mm) (mm) flutes TNMPS04B5 5P Thread Mills 1/16SM80 P1 36 6.3 - 24 3 2.5 5 3 2 △ TNMPS04B1 1.5P TNMPS05D5 5P 5/64SM64 P1 42 7.2 12 27 3 2.5 5 3 3 △ TNMPS05D1 1.5P TNMPS06E5 5P Dies 3/32SM56 P1 46 8.1 14 29 3 2.5 5 3 3 △ TNMPS06E1 1.5P TNMPS06A5 5P 3/32SM100 P1 46 3.4 14 29 3 2.5 5 3 4 △ TNMPS06A1 1.5P TNMQS08H5 5P Center Drills 1/8SM40 P2 52 11 16 29 5 4 7 3 3 △ TNMQS08H1 1.5P TNMQS08G5 5P 1/8SM44 P2 52 11 16 29 5 4 7 3 3 △ TNMQS08G1 1.5P TNMQS09H5 5P 9/64SM40 P2 52 11 17 29 5 4 7 3 3 △ Centering Tools TNMQS09H1 1.5P TNMQS11H5 5P 11/64SM40 P2 60 13 21 33 5.5 4.5 7 4 3 △ TNMQS11H1 1.5P 3/16SM24 P2 TNMQS12M5 5P 60 13 21 33 5.5 4.5 7 4 3 △ JIS ◎=Standard ○=Semi standard △=Made to order HT-16 For improvement, spec may change without advance notice. 441