Page 259 - Yamawa_European_Catalogue_YEU21

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
GH2 1.8 1.83 Y82623 4.5P 1.75 0.256 0.437 - 0.14 0.11 0.187 2 030 f
No.2-56UNC
GH3 1.8 1.83 Y82624 4.5P 1.75 0.256 0.437 - 0.14 0.11 0.187 2 030 f SP
No.3-48UNC GH2 2.09 2.1 Y82600 4.5P 1.812 0.295 0.5 - 0.14 0.11 0.187 2 030 f
GH2 2.3 2.33 Y82601 4.5P 1.875 0.335 0.562 - 0.14 0.11 0.187 2 030 f
GH3 2.3 2.33 Y82602 4.5P 1.875 0.335 0.562 - 0.14 0.11 0.187 2 030 f
No.4-40UNC SL
GH4 2.3 2.33 Y82612 4.5P 1.875 0.335 0.562 - 0.14 0.11 0.187 2 030 f
GH5 2.3 2.33 Y82634 4.5P 1.875 0.335 0.562 - 0.14 0.11 0.187 2 030 f
No.5-40UNC GH2 2.6 2.64 Y82603 4.5P 1.937 0.374 0.625 - 0.14 0.11 0.187 3 030 f
GH2 2.8 2.83 Y82604 4.5P 2 0.413 0.687 - 0.14 0.11 0.187 3 030 f
PO
GH3 2.8 2.83 Y82605 4.5P 2 0.413 0.687 - 0.14 0.11 0.187 3 030 f
ANSI
GH4 2.8 2.83 Y82608 4.5P 2 0.413 0.687 - 0.14 0.11 0.187 3 030 f
No.6-32UNC
GH5 2.8 2.83 Y82635 4.5P 2 0.413 0.687 - 0.14 0.11 0.187 3 030 f
GH6 2.8 2.83 Y82659 4.5P 2 0.413 0.687 - 0.14 0.11 0.187 3 030 f ST
GH7 2.8 2.83 Y82665 4.5P 2 0.413 0.687 - 0.14 0.11 0.187 3 030 f
GH2 3.4 3.47 Y82606 4.5P 2.125 0.453 0.75 - 0.17 0.131 0.25 3 030 f
GH3 3.4 3.47 Y82607 4.5P 2.125 0.453 0.75 - 0.17 0.131 0.25 3 030 f
ROLL
GH4 3.4 3.47 Y82629 4.5P 2.125 0.453 0.75 - 0.17 0.131 0.25 3 030 f
No.8-32UNC
GH5 3.4 3.47 Y82637 4.5P 2.125 0.453 0.75 - 0.17 0.131 0.25 3 030 f
GH6 3.4 3.47 Y82660 4.5P 2.125 0.453 0.75 - 0.17 0.131 0.25 3 030 f
GH7 3.4 3.47 Y82667 4.5P 2.125 0.453 0.75 - 0.17 0.131 0.25 3 030 f CARBIDE
GH3 3.89 3.9 Y82609 4.5P 2.375 0.531 0.875 - 0.19 0.152 0.25 3 030 f
GH5 3.89 3.9 Y82639 4.5P 2.375 0.531 0.875 - 0.19 0.152 0.25 3 030 f
No.10-24UNC
GH6 3.89 3.9 Y82690 4.5P 2.375 0.531 0.875 - 0.19 0.152 0.25 3 030 f
LONG
GH7 3.89 3.9 Y82669 4.5P 2.375 0.531 0.875 - 0.19 0.152 0.25 3 030 f
No.12-24UNC GH3 4.5 4.53 Y82688 4.5P 2.375 0.571 0.937 - 0.22 0.165 0.281 3 030 f
GH3 5.1 5.19 Y82613 4.5P 2.5 0.591 1 - 0.26 0.191 0.312 3 030 f
GH5 5.1 5.19 Y82643 4.5P 2.5 0.591 1 - 0.26 0.191 0.312 3 030 f HAND
1/4-20UNC TAPS
GH6 5.1 5.19 Y82590 4.5P 2.5 0.591 1 - 0.26 0.191 0.312 3 030 f
GH7 5.1 5.19 Y82673 4.5P 2.5 0.591 1 - 0.26 0.191 0.312 3 030 f
GH3 6.6 6.65 Y82615 4.5P 2.718 0.669 1.125 - 0.32 0.238 0.375 3 030 f
5/16-18UNC GH5 6.6 6.65 Y82645 4.5P 2.718 0.669 1.125 - 0.32 0.238 0.375 3 030 f EG (STI)
GH7 6.6 6.65 Y82675 4.5P 2.718 0.669 1.125 - 0.32 0.238 0.375 3 030 f
GH3 8 8.07 Y82617 4.5P 2.937 0.748 1.25 - 0.38 0.286 0.437 3 030 f
3/8-16UNC GH5 8 8.07 Y82647 4.5P 2.937 0.748 1.25 - 0.38 0.286 0.437 3 030 f SPECIAL
THREADS,
GH7 8 8.07 Y82668 4.5P 2.937 0.748 1.25 - 0.38 0.286 0.437 3 030 f
GAUGES
GH3 9.4 9.45 Y82619 4.5P 3.156 0.866 - - 0.32 0.242 0.406 3 007 f
7/16-14UNC
GH5 9.4 9.45 Y82649 4.5P 3.156 0.866 - - 0.32 0.242 0.406 3 007 f
GH3 10.9 10.91 Y82621 4.5P 3.375 0.984 - - 0.37 0.275 0.437 3 007 f THREAD
MILLS
1/2-13UNC GH5 10.9 10.91 Y82651 4.5P 3.375 0.984 - - 0.37 0.275 0.437 3 007 f
GH7 10.9 10.91 Y82681 4.5P 3.375 0.984 - - 0.37 0.275 0.437 3 007 f
9/16-12UNC GH3 12.2 12.33 Y82653 4.5P 3.593 0.984 - - 0.43 0.322 0.5 3 007 f
GH3 13.6 13.75 Y82625 4.5P 3.812 1.083 - - 0.48 0.36 0.562 3 007 f DIES
5/8-11UNC
GH5 13.6 13.75 Y82655 4.5P 3.812 1.083 - - 0.48 0.36 0.562 3 007 f
GH3 16.6 16.7 Y82627 4.5P 4.25 1.201 - - 0.59 0.422 0.687 3 007 f
3/4-10UNC
GH5 16.6 16.7 Y82657 4.5P 4.25 1.201 - - 0.59 0.422 0.687 3 007 f CENTER
7/8-9UNC GH4 19.6 19.61 Y82695 4.5P 4.687 1.339 - - 0.7 0.523 0.75 3 007 f DRILLS
1 -8UNC GH4 22.3 22.45 Y82697 4.5P 5.125 1.496 - - 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. 257
Check page 673 of Technical info for full details.