Page 520 - YG 2019

TECHNICAL TECHNICAL

DATA DATA

1 TAPS TERMINOLOGY 2 MODI TAP BLANK DIMENSION

(d 1) (d 1) (d 1)
(D) (D) (D)
L 5 L3
(L 1) (L 1) (L 1) (L 3)
d4 d2 (L 2) (L 3) (L 2) (L 3) (L 2)
(L) (L) (L)
d 1 d 3

a
Cm L 1 L 4 L 2 Unified Tap Blank
L Overall Thread Length Length to neck Shank Neck Square Square
Nominal Length Diameter Diameter Length Size Blank
Size SF SP SF SP Design
No.
(L) (L1) (L2) (D) (d1) (L3) (a)
Cf L 6
d1 Major diameter d1 Major diameter 1.75 .157 .256 .433 .141 .061 .19 .110 1
#2
d4 d2 Shank diameter dm Flank diameter 1.81 .197 .295 .492 .141 .069 .19 .110 1
#3
d3 Chamfer diameter di Minor diameter
#4
d4 Neck diameter d3 Chamfer diameter 1.88 .236 .335 .563 .141 .077 .19 .110 1
d 1 d 3
L Total length P Pitch #5 1.94 .236 .374 .626 .141 .090 .19 .110 1
L1 Thread length a Flank angle
#6
L2 Shank length β Chamfer angle 2.00 .276 .413 .689 .141 .094 .19 .110 1
#8
L3 Square length φ Gun nose angle 2.13 .276 .453 .752 .168 .120 .25 .131 1
L 1 L 4 L 2 Neck length γ Gun nose rake angle in front
L4 #10-24 .354 .131 1
L5 Chamfer length Chamfer relief 2.38 .531 .906 .194 .25 .152
L L6 Flutes length Pitch diameter relief on the land .276 .146 1
#10-32
a Square size γ Rake angle .354 .157 1
#12-24
Cm Center male T Width of land 2.38 .571 .906 .220 .28 .165
#12-28
Cf Center female S Flute width .276 .166 1
1/4-20
d5 Web tickness .433 .180 2
ε Angle of spiral ute 2.50 .591 1.000 .255 .31 .191
1/4-28 .354 .200 2
5/16-18 .472 .234 2
2.72 .669 1.126 .318 .38 .238
5/16-24 .394 .254 2
1 γ γ 3/8-16 .551 .287 2
A β 3/8-24 2.94 .394 .748 1.252 .381 .316 .44 .286 2
B
S 7/16-14 .591 3
7/16-20 3.16 .472 .866 1.850 1.437 .323 .311 .41 .242 3
1
di dm d1 1/2-13 .630 3
d 3.38 .984 2.067 1.657 .367 .354 .44 .275
T 1/2-20 .472 3
φ
ε 9/16-12 .709 3
3.59 .984 2.067 1.657 .429 .417 .50 .322
P A-A 9/16-18 .512 3
A α
B d5 5/8-11 3.81 .748 1.083 2.205 1.811 .480 .469 .56 .360 3
B-B 5/8-18 .512 3
d1 Major diameter d1 Major diameter 3/4-10 .827 3
1 γ γ 1 d2 Shank diameter γ γ dm Flank diameter 4.25 1.201 2.480 2.000 .590 .577 .69 .442
d3 Chamfer diameter di Minor diameter 3/4-10 .591 3
A A β β B B d4 Neck diameter d3 Chamfer diameter 7/8-9 .827 3
S S
L Total length P Pitch 4.69 1.339 2.815 2.220 .697 .685 .75 .523
L1 Thread length a Flank angle 7/8-14 .709 3
L2 Shank length 1 1 β Chamfer angle 1-8 5.13 .984 1.496 3.091 2.500 .800 .787 .81 .600 3
φ
Neck length
Gun nose rake angle in front
d d di di dm dm d1 d1 L3 Square length γ Gun nose angle 1-12 .709 3
L4
T
T
φ φ ε L5 ε Chamfer length Chamfer relief 1-1/8-7 5.44 1.024 1.535 3.15 2.563 .896 .878 .88 .672 3
L6 Flutes length Pitch diameter relief on the land 1-1/8-12 .787 3
a Square size γ Rake angle
A A P P α α A-A A-A Cm Center male T Width of land 1-1/4-7 5.75 1.024 1.535 3.15 2.563 1.021 1.002 1.00 .766 3
B B Cf Center female d5 d5 S Flute width 1-1/4-12 .787 3
B-B B-B d5 Web tickness 1-3/8-6 1.181 3
ε Angle of spiral ute 6.06 1.791 3.583 3.000 1.108 1.089 1.06 .831
1-3/8-12 .866 3
1-1/2-6 1.181 3
1-1/2-12 6.38 .866 1.791 3.583 3.000 1.233 1.213 1.13 .925 3
*SF : Spiral Fluted Taps
*SP : Spiral Pointed Taps
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