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h stock standard, ) check stock EU, f check stock JP, m stock exhaustion

UNC TCTR Ø Hole Ø Code THCHT LF THL LU LS DCON K LK NOF Type Stock Intro
(tolerance) (mm) (mm) (chamfer) ( inch ) ( inch ) ( inch ) ( inch ) ( inch ) ( inch ) ( inch )
ANSI
GH1 1.54 1.55 PSUN1D1NEB 5P 1.772 0.275 - 1.161 0.14 0.11 0.187 2 004 f
No.1-64UNC
GH2 1.54 1.55 PSUN1D2NEB 5P 1.772 0.275 - 1.161 0.14 0.11 0.187 2 004 f SP
GH1 1.8 1.83 PSUN2E1NEB 5P 1.772 0.314 - 1.161 0.14 0.11 0.187 2 004 f
No.2-56UNC
GH2 1.8 1.83 PSUN2E2NEB 5P 1.772 0.314 - 1.161 0.14 0.11 0.187 2 004 f
GH1 2.09 2.1 PSUN3F1NEB 5P 2.205 0.354 0.669 1.28 0.14 0.11 0.187 2 005 f
No.3-48UNC SL
GH2 2.09 2.1 PSUN3F2NEB 5P 2.205 0.354 0.669 1.28 0.14 0.11 0.187 2 005 f
GH2 2.3 2.33 PSUN4H2NEB 5P 2.205 0.354 0.709 1.28 0.14 0.11 0.187 2 005 f
No.4-40UNC
GH3 2.3 2.33 PSUN4H3NEB 5P 2.205 0.354 0.709 1.28 0.14 0.11 0.187 2 005 f
GH2 2.6 2.64 PSUN5H2NEB 5P 2.205 0.433 0.768 1.358 0.14 0.11 0.187 2 005 f PO
No.5-40UNC
GH3 2.6 2.64 PSUN5H3NEB 5P 2.205 0.433 0.768 1.358 0.14 0.11 0.187 2 005 f
ANSI
GH2 2.8 2.83 PSUN6J2NEB 5P 2.205 0.433 0.768 1.358 0.14 0.11 0.187 2 005 f
No.6-32UNC
GH3 2.8 2.83 PSUN6J3NEB 5P 2.205 0.433 0.768 1.358 0.14 0.11 0.187 2 005 f
GH2 3.4 3.47 PSUN8J2NEB 5P 2.48 0.512 0.827 1.535 0.17 0.131 0.25 2 005 f ST
No.8-32UNC
GH3 3.4 3.47 PSUN8J3NEB 5P 2.48 0.512 0.827 1.535 0.17 0.131 0.25 2 005 f
GH2 3.89 3.9 PSUNAM2NEB 5P 2.756 0.551 0.984 1.654 0.19 0.152 0.25 2 005 f
No.10-24UNC
GH3 3.89 3.9 PSUNAM3NEB 5P 2.756 0.551 0.984 1.654 0.19 0.152 0.25 2 005 f
ROLL
GH2 4.5 4.53 PSUNCM2NEB 5P 3.15 0.591 0.984 1.929 0.22 0.165 0.281 2 005 f
No.12-24UNC
GH3 4.5 4.53 PSUNCM3NEB 5P 3.15 0.591 0.984 1.929 0.22 0.165 0.281 2 005 f
GH3 5.1 5.19 PSU04N3NEB 4.5P 3.15 0.591 1.181 1.713 0.26 0.191 0.312 3 005 f
1/4-20UNC GH4 5.1 5.19 PSU04N4NEB 4.5P 3.15 0.591 1.181 1.713 0.26 0.191 0.312 3 005 f CARBIDE
GH5 5.1 5.19 PSU04N5NEB 4.5P 3.15 0.591 1.181 1.713 0.26 0.191 0.312 3 005 f
GH3 6.6 6.65 PSU05O3NEB 4.5P 3.543 0.748 1.378 1.831 0.32 0.238 0.375 3 006 f
5/16-18UNC GH4 6.6 6.65 PSU05O4NEB 4.5P 3.543 0.748 1.378 1.831 0.32 0.238 0.375 3 006 f
LONG
GH5 6.6 6.65 PSU05O5NEB 4.5P 3.543 0.748 1.378 1.831 0.32 0.238 0.375 3 006 f
GH3 8 8.07 PSU06P3NEB 4.5P 3.937 0.906 1.535 2.028 0.38 0.286 0.437 3 006 f
3/8-16UNC
GH5 8 8.07 PSU06P5NEB 4.5P 3.937 0.906 1.535 2.028 0.38 0.286 0.437 3 006 f
GH4 9.4 9.45 PSU07Q4NEB 4.5P 3.937 0.906 - 2.008 0.32 0.242 0.406 3 007 f HAND
7/16-14UNC TAPS
GH5 9.4 9.45 PSU07Q5NEB 4.5P 3.937 0.906 - 2.008 0.32 0.242 0.406 3 007 f
GH3 10.9 10.91 PSU08R3NEB 4.5P 4.331 1.024 - 2.205 0.37 0.275 0.437 3 007 f
1/2-13UNC GH4 10.9 10.91 PSU08R4NEB 4.5P 4.331 1.024 - 2.205 0.37 0.275 0.437 3 007 f
GH5 10.9 10.91 PSU08R5NEB 4.5P 4.331 1.024 - 2.205 0.37 0.275 0.437 3 007 f EG (STI)
GH3 12.2 12.33 PSU09S3NEB 4.5P 4.331 1.024 - 2.205 0.43 0.322 0.5 3 007 f
9/16-12UNC GH4 12.2 12.33 PSU09S4NEB 4.5P 4.331 1.024 - 2.205 0.43 0.322 0.5 3 007 f
GH5 12.2 12.33 PSU09S5NEB 4.5P 4.331 1.024 - 2.205 0.43 0.322 0.5 3 007 f SPECIAL
THREADS,
GH3 13.6 13.75 PSU10U3NEB 4.5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 007 f
GAUGES
GH4 13.6 13.75 PSU10U4NEB 4.5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 007 f
5/8-11UNC
GH5 13.6 13.75 PSU10U5NEB 4.5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 007 f
GH6 13.6 13.75 PSU10U6NEB 4.5P 4.331 1.024 - 2.205 0.48 0.36 0.562 3 007 f THREAD
MILLS
GH5 16.6 16.7 PSU12V5NEB 4.5P 4.921 1.299 - 2.52 0.59 0.442 0.687 3 007 f
3/4-10UNC
GH6 16.6 16.7 PSU12V6NEB 4.5P 4.921 1.299 - 2.52 0.59 0.442 0.687 3 007 f
GH4 19.6 19.61 PSU14W4NEB 4.5P 5.512 1.299 - 2.795 0.7 0.523 0.75 3 007 f
7/8-9UNC GH5 19.6 19.61 PSU14W5NEB 4.5P 5.512 1.299 - 2.795 0.7 0.523 0.75 3 007 f DIES
GH6 19.6 19.61 PSU14W6NEB 4.5P 5.512 1.299 - 2.795 0.7 0.523 0.75 3 007 f
GH4 22.3 22.45 PSU16X4NEB 4.5P 6.299 1.457 - 3.228 0.8 0.6 0.812 3 007 f
GH5 22.3 22.45 PSU16X5NEB 4.5P 6.299 1.457 - 3.228 0.8 0.6 0.812 3 007 f CENTER
1 -8UNC
GH6 22.3 22.45 PSU16X6NEB 4.5P 6.299 1.457 - 3.228 0.8 0.6 0.812 3 007 f DRILLS
GH7 22.3 22.45 PSU16X7NEB 4.5P 6.299 1.457 - 3.228 0.8 0.6 0.812 3 007 f

Technical
info

The most suitable GH tap class to cut accurate 2B, 3B (UNJ) and 2B oversized internal threads tolerance, depends
on application conditions and work-piece materials. Yamawa GH class system off ers a wide range of alternative
tap classes allowing each customer to select the most suitable one according to application requirement. 253
Check page 673 of Technical info for full details.