A\
D-Thread Holder V/ .
SR Modular Head (U Style) Applications SR Modular Head (U Style) Applications
Thread Application for Full Profile Inserts (ISO, UN, NPT & API Round) Thread Application for Full Profile Inserts (ISO, UN, NPT & API Round)
PI Round, Cylindrical or API Round, PI Round, Cylindrical or API Round,
Toolholder Cylindrical or Toolholder Cylindrical or
Cylindrical Conical Pre Drilled Hole
-
Conical Cylindrical Conical Pre Drilled Hole
-
Conical
Cutting Conical Cutting Conical
Tool holder Pitch Min.Thread Dia. Pre-Drilled (for cylidrical 2 radial Pre- Drilled Hole Tool holder Pitch Min.Thread Dia. Pre - Drilled (for cylidrical 2 radial Pre- Drilled Hole
Diameter Pre- Drilled Diameter Pre-Drilled
hole passes 50%/50%; for only hole passes 50%/50%; for only
D2(mm) hole D2(mm) hole
conical one radial pass (one pass) conical one radial pass (one pass)
NPT NPT
NPT Threading NPT Threading
ISO UN/UNF/ Threading by ISO UN/UNF/ Threading by
Adjusted D2 mm TPI by 1Radius Thread Dia. Adjusted D2 mm TPI by 1 Radius Thread Dia.
Coarse UNEF/UNS 2 Radial Passes Coarse UNEF/UNS 2 Radial Passes
Pass Pass
(50%/50%) (50%/50%)
13.80 1.5 M16X1.5 30.00 1.5 M 33X1.5
13.60 2.0 M16x 2.0 29.85 2.0 M 34x2.0
13.70 14 S
/8 -14UNS 29.94 14 l3/8-14UNS
SR0015 -11U - M06 11/ 15/16 -12UN
13.60 12 1fi
-12UN 29.85 12
14.59 14 V2-14NPT;
lV -USNPT;
15.79 1.5 M18xl.5
3
/4- 14NPT
SR0031-11U - M12 30.63 11.5
^
lVj-ll.SNPT;
2 -11NPT
15.60 2.0 M18x 2.0
3
SR0017-11U-M08 15.69 14 /4 -14UNS
3
1.66...3.5 X10APIRD
15.60 12 /4-12UN
(for TBG; UPTBG;
15.60 14
3
/4 - 14NPT 29.44 10
UP TBG Long;
19.69 1.5 M 22X1.5 Integral -Joint TBG)
19.50 2.0 M 22X 2.0
7 1V4-11.5 NPT;
19.60 14 /8 -14UNF
7
35.65 11.5 l1/.,-11.5 NPT;
SR0021-11U-M08 19.50 12 /8 -12UN
3 2-11.5NPT
20.50 14 /4-14NPT
SR0031-11U - M12 35.65 8 2V2..10- 8NPT
20.28 11.5 1-11.5 NPT;
1V4 -11.5 NPT; 2.375...13.375x8APIRD
1V2 -11.5 NPT; (for CSG; TBG; UP TBG; 8.625...20x8APIRD
2-11NPT 34.70 8 UP TBG Long); (for LCSG)
21.65 1.5 M24X1.5 4.5...5.5 X8APIRD (for LCSG)
21.50 2.0 M 24X 2.0
1-14UNS lV -ll.SNPT;
21.49
21.50
14
12 1-12UNF
41.15
41.15
11.5
8
'
2-11.5 NPT 21/r .10-8NPT
1-11.5 NPT; 2.875...20x8APIRD (for
SR0023 -11U-M10 l1/' -11.5NPT; SR0031-11U - M12 CSG; TGB; UP TBG; 8.625X8APIRD
22.63 11.5 1V2 -11.5NPT; 40.20 8 UP TBG Long); (for LCSG)
2-11NPT 4.5...7.625 X8APIRD
(for LCSG)
1.05xl0APIRD (for UPTBG;
UP TBG Long);1.315...2.375x
* Correct the toolholder cutting diameter D2 according to adjustment, as indicated in the above table.
10APIRD (for TBG; UP TBG;
21.44 10 ** When the pre drilled hole for 8NPT is conical, the thread can be machined in one pass.
-
UPTBG Long;
Integral -Joint TBG)
25.64 1.5 M 28X1.5
25.45 2.0 M 30x 2.0
25.54 14 1V8-14UNS
25.45 12 1V8-12UNF
1-11.5 NPT;
1V4-11.5 NPT;
26.23 11.5 1V2-11.5 NPT;
SR0027-11U-M12
2 -11NPT
1.315...2.375X10APIRD
(for TBG; UP TBG;
24.94 10 UPTBG Long;
Integral -Joint TBG)
* Correct the toolholder cutting diameter D2 according to adjustment, as indicated in the above table.
** When the pre-drilled hole for 8NPT is conical, the thread can be machined in one pass.


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