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Tapping Home > Tapping > UNIFIED THREAD TAPS > STRAIGHT FLUTE CAST IRON TAPS
Straight Flute Tap Modified Bottoming Style for Cast Iron - TR-A, TR-R SERIES

Size T.P.I EDP No. Limit Overall Length Thread Length Neck Length Shank Diameter Square Size Square Length No. of Flute
D1 Through Coolant Hole Radial Coolant Hole L2 L1 L3 D2 K Kl
#10 24UNC TR323A TR323R H3 2.374 0.531 0.906 0.194 0.152 0.250 4
#10 24UNC TR325A TR325R H5 2.374 0.531 0.906 0.194 0.152 0.250 4
#10 32UNF TR343A TR343R H3 2.374 0.531 0.906 0.194 0.152 0.250 4
1/4 20UNC TR403A TR403R H3 2.500 0.591 1.000 0.255 0.191 0.310 4
1/4 20UNC TR405A TR405R H5 2.500 0.591 1.000 0.255 0.191 0.310 4
1/4 28UNF TR423A TR423R H3 2.500 0.591 1.000 0.255 0.191 0.310 4
5/16 18UNC TR443A TR443R H3 2.720 0.669 1.126 0.318 0.238 0.380 4
5/16 18UNC TR445A TR445R H5 2.720 0.669 1.126 0.318 0.238 0.380 4
5/16 24UNF TR463A TR463R H3 2.720 0.669 1.126 0.318 0.238 0.380 4
3/8 16UNC TR483A TR483R H3 2.937 0.748 1.252 0.381 0.286 0.440 4
3/8 16UNC TR485A TR485R H5 2.937 0.748 1.252 0.381 0.286 0.440 4
3/8 24UNF TR503A TR503R H3 2.937 0.748 1.252 0.381 0.286 0.440 4
7/16 14UNC TR523A TR523R H3 3.157 0.866 1.437 0.323 0.242 0.410 4
7/16 14UNC TR525A TR525R H5 3.157 0.866 1.437 0.323 0.242 0.410 4
7/16 20UNF TR543A TR543R H3 3.157 0.866 1.437 0.323 0.242 0.410 4
7/16 20UNF TR545A TR545R H5 3.157 0.866 1.437 0.323 0.242 0.410 4
1/2 13UNC TR563A TR563R H3 3.374 0.984 1.657 0.367 0.275 0.440 4
1/2 13UNC TR565A TR565R H5 3.374 0.984 1.657 0.367 0.275 0.440 4
1/2 20UNF TR583A TR583R H3 3.374 0.984 1.657 0.367 0.275 0.440 4
1/2 20UNF TR585A TR585R H5 3.374 0.984 1.657 0.367 0.275 0.440 4
9/16 12UNC TR603A TR603R H3 3.594 0.984 1.657 0.429 0.322 0.500 4
9/16 12UNC TR605A TR605R H5 3.594 0.984 1.657 0.429 0.322 0.500 4
9/16 18UNF TR623A TR623R H3 3.594 0.984 1.657 0.429 0.322 0.500 4
9/16 18UNF TR625A TR625R H3 3.594 0.984 1.657 0.429 0.322 0.500 4
5/8 11UNC TR643A TR643R H3 3.811 1.083 1.811 0.480 0.360 0.560 4
5/8 11UNC TR645A TR645R H5 3.811 1.083 1.811 0.480 0.360 0.560 4
5/8 18UNF TR663A TR663R H3 3.811 1.083 1.811 0.480 0.360 0.560 4
5/8 18UNF TR665A TR665R H5 3.811 1.083 1.811 0.480 0.360 0.560 4
3/4 10UNC TR703A TR703R H3 4.252 1.201 2.000 0.590 0.442 0.690 4
3/4 10UNC TR705A TR705R H5 4.252 1.201 2.000 0.590 0.442 0.690 4
3/4 16UNF TR723A TR723R H3 4.252 1.201 2.000 0.590 0.442 0.690 4
3/4 16UNF TR725A TR725R H5 4.252 1.201 2.000 0.590 0.442 0.690 4
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