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Tapping Home > Tapping > UNIFED THREAD TAPS > BLUE RING TAPS
BLUE RING SPIRAL POINT Taps, DIN/ANSI Dimensions, for Steels & Stainless Steels up to 35HRc, and Exotics (N4,O5)

Size T.P.I EDP No. Limit Overall Length Thread Length Neck Length Shank Diameter Square Size Square Length No. of Flute
D1 Steam Oxide Hardslick L2 L1 L3 D2 K Kl
#2 56UNC N4082 O5082 H2 1.752 0.256 0.433 0.141 0.110 0.190 2
#4 40UNC N4162 O5162 H2 2.205 0.335 0.563 0.141 0.110 0.190 2
#5 40UNC N4202 O5202 H2 2.205 0.374 0.626 0.141 0.110 0.190 3
#6 32UNC N4243 O5243 H3 2.205 0.413 0.689 0.141 0.110 0.190 3
#8 32UNC N4283 O5283 H3 2.480 0.453 0.752 0.168 0.131 0.250 3
#10 24UNC N4323 O5323 H3 2.756 0.531 0.906 0.194 0.152 0.250 3
#10 32UNF N4343 O5343 H3 2.756 0.531 0.906 0.194 0.152 0.250 3
1/4 20UNC N4403 O5403 H3 3.150 0.591 1.000 0.255 0.191 0.310 3
1/4 20UNC N4405 O5405 H5 3.150 0.591 1.000 0.255 0.191 0.310 3
1/4 28UNF N4423 O5423 H3 3.150 0.591 1.000 0.255 0.191 0.310 3
5/16 18UNC N4445 O5445 H5 3.543 0.669 1.126 0.318 0.238 0.380 3
5/16 24UNF N4464 O5464 H4 3.543 0.669 1.126 0.318 0.238 0.380 3
3/8 16UNC N4485 O5485 H5 3.937 0.748 1.252 0.381 0.286 0.440 3
3/8 24UNF N4504 O5504 H4 3.937 0.748 1.252 0.381 0.286 0.440 3
7/16 14UNC N4525 O5525 H5 3.937 0.866 1.437 0.323 0.242 0.410 3
7/16 20UNF N4545 O5545 H5 3.937 0.866 1.437 0.323 0.242 0.410 3
1/2 13UNC N4565 O5565 H5 4.331 0.984 1.657 0.367 0.275 0.440 3
1/2 20UNF N4585 O5585 H5 3.937 0.984 1.657 0.367 0.275 0.440 3
9/16 12UNC N4605 O5605 H5 4.331 0.984 1.657 0.429 0.322 0.500 3
9/16 18UNC N4625 O5625 H5 3.937 0.984 1.657 0.429 0.322 0.500 3
5/8 11UNC N4645 O5645 H5 4.331 1.083 1.811 0.480 0.360 0.560 3
5/8 18UNF N4665 O5665 H5 3.937 1.083 1.811 0.480 0.360 0.560 3
3/4 10UNC N4705 O5705 H5 4.921 1.201 2.000 0.590 0.442 0.690 3
3/4 16UNF N4725 O5725 H5 4.331 1.201 2.000 0.590 0.442 0.690 3
7/8 9UNC N4746 O5746 H6 5.512 1.339 2.224 0.697 0.523 0.750 3
7/8 14UNF N4766 O5766 H6 4.921 1.339 2.224 0.697 0.523 0.750 3
1 8UNC N4786 O5786 H6 6.299 1.496 2.500 0.800 0.600 0.810 3
1 12UNC N4806 O5806 H6 5.512 1.496 2.500 0.800 0.600 0.810 3
1-1/8 8UN N4836 O5836 H6 7.087 1.575 2.638 0.896 0.672 0.880 4
1-1/4 8UN N4876 O5876 H6 7.087 1.575 2.638 1.021 0.766 1.000 4
1-3/8 8UN N4916 O5916 H6 7.874 1.654 2.953 1.108 0.831 1.060 4
1-1/2 8UN N4956 O5956 H6 7.874 1.654 2.953 1.233 0.925 1.130 4
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