Page 501 - YG 2019
P. 501
SELECTION GUIDE SCREW THREAD ST/SI SERIES
INSERT TAPS
SCREW THREAD INSERT TAPS SPIRAL FLUTE STI TAPS BOTTOMING STYLE
Tapping STI Threads of Soft Materials (HSSE-V3 & HSS)
Thread Depth /
INCH/METRIC Hole Type 2.5×D
Tool Work Thread Surface
EDP No. MODEL Standard Dimensions Tolerance Chamfer Page
Material Material Depth Treatment
USCTI
ST/SI HSSE-V3 UNC/UNF GS USCTI 322 2B 1.5 ~ 2P Hardslick 501
T7406 HSS UNC/UNF GS USCTI 322 H 1.5 ~ 2P 2.5D Bright 502 GS HSSE-V3 UNC USCTI 1.5P~2P Hardslick R40
UNF
322
T7425 HSS M/MF GS USCTI 322A D 1.5 ~ 2P Bright 503 Thread Per Inch EDP No.
SIZE Limit No. of Flute
UNC UNF Hardslick
ST/SI HSSE-V3 UNC/UNF GS USCTI 322 2B 4 ~ 5P Hardslick 504 #4 40 — 2B 3 ST162
#4 — 48 2B 3 SI182
#5 40 — 2B 3 ST202
T7436 HSS UNC/UNF GS USCTI 322 H 4 ~ 5P 3.0D Bright 505 #5 — 44 2B 3 SI222
#6 32 — 2B 3 ST242
#6 — 40 2B 3 SI262
T7415 HSS M/MF GS USCTI 322A D 4 ~ 5P Bright 506 #8 32 — 2B 3 ST282
#8 — 36 2B 3 SI302
T7426 HSS UNC/UNF GS USCTI 322 H 4 ~ 5P Bright 507 #10 24 — 2B 3 ST322
1.5 ~ 2P #10 — 32 2B 3 SI342
2.0D #12 24 — 2B 3 ST362
—
SI382
4 ~ 5P
T7405 HSS M/MF GS USCTI 322A D 1.5 ~ 2P Bright 508 #12 20 28 2B 3 ST402
—
1/4
2B
3
1/4 — 28 2B 3 SI422
5/16 18 — 2B 3 ST442
5/16 — 24 2B 3 SI462
3/8 16 — 2B 3 ST482
3/8 — 24 2B 3 SI502
7/16 14 — 2B 3 ST522
7/16 — 20 2B 3 SI542
1/2 13 — 2B 3 ST562
1/2 — 20 2B 3 SI582
9/16 12 — 2B 4 ST602
9/16 — 18 2B 4 SI622
5/8 11 — 2B 4 ST642
5/8 — 18 2B 4 SI662
3/4 10 — 2B 4 ST702
3/4 — 16 2B 4 SI722
▶Refer to technical data on page 520~554.
◎ : Excellent ○: Good
P M K
Low carbon steels/ Medium to high Steel castings & forgings / Alloyed tool steels/ Free machining Heat-and corrosionresistant Stainless steel castings / Grey
Free machining carbon steels/ Heat-treatable alloy steels Mold steels stainless steels stainless steels / Precipitation hardening cast iron
carbon steels Low alloyed steels Valve stainless steels stainless steels
~HRc15 ~HRc23 ~HRc24 (~HB250) ~HRc38 (~HB350) ~HRc23 ~HRc24 (~HB250) ~HRc38 (~HB350) ~HRc19
(~HB180) (~HB240) ~HRc38 (~HB350) ~HRc44 (~HB420) (~HB240) ~HRc38 (~HB350) ~HRc44 (~HB420) (~HB220)
◎ ◎ ○ ○
K N S
Nodular cast iron / Pure and Free machining Pure Aluminum/ Aluminum 718 & 625 INCO / 718
Chilled cast iron / brass Bronze alloy Zinc Magnesium Waspaloy / Hastelloy / Inconel / Titanium
Meehanite iron / Ductile iron alloyed copper / Alloyed brass Aluminum alloy castings Invar / Monel / Incoloy A286
~HRc24 (~HB250)
○ ○
500 phone:+1-800-765-8665, Technical Support : 888-868-5988, www.yg1usa.com phone:+1-800-765-8665, Technical Support : 888-868-5988, www.yg1usa.com • 501
