Short Machine Hand Taps 2
Table Shows General Dimensions Applicable to Standard Thread Designations
Nominal Dai d
|
Thread Designations |
Standard Coarse Blanks |
Standard Fine Pitch Blanks |
Square |
| Above |
Up
To
&
Inc. |
ISO
Metric
Coarse |
ISO
Metric
Fine |
UNC |
UNF |
BSW |
BSF |
Shank
Dia D |
Overall
Length
L |
Length
of
Thread
Max |
For Threads
Finer Than
P |
TPI |
Overall
Length
L
|
Length
of Thread
Max
|
Across
Flats
a |
Length |
|
| 26.5 |
28 |
M27 |
M27 x 2 |
|
|
|
|
|
135 |
45 |
|
|
|
|
|
|
| 28 |
30 |
M30 |
M30 x 2 |
1.1/ 8-7 |
1.1/8-12 |
1.1/8-7 |
1.1/8-9 |
20 |
138 |
48 |
|
|
127 |
|
16 |
20 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
37 |
|
|
| 30 |
33.5 |
M33 |
M33 X 2 |
1.1/ 4-7 |
1.1/4-12 |
1.1/4-7 |
1.1/4-9 |
22.4 |
151 |
51 |
|
|
137 |
|
18 |
22 |
|
|
|
|
|
|
|
|
|
|
|
2.50 |
|
|
|
|
|
| 33.5 |
37.5 |
M36 |
|
1.3/ 8-6 |
1.3/8-12 |
|
1.3/8-8 |
25 |
162 |
57 |
|
11 |
144 |
|
20 |
24 |
|
|
M39 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 27.5 |
42.5 |
M42 |
|
1.1/2-6 |
1.1/2-12 |
1.1/2-6 |
1.1/2-8
1.5/8-8 |
28 |
170 |
60 |
|
|
149 |
39 |
22.4 |
26 |
|
|
M45 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 42.5 |
50 |
M48 |
|
1.3/4-5 |
|
1.3/4-5 |
1.3/4-7 |
31.5 |
187 |
67 |
|
|
165 |
|
25 |
28 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
45 |
|
|
|
|
M52 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| 50 |
56 |
M56 |
|
2-4.1/2 |
|
2-4.1/2 |
2-7 |
35.5 |
200 |
70 |
|
|
175 |
|
28 |
31 |
| 56 |
63 |
M60 |
|
2.1/4-4.1/2 |
|
2.1/4-4 |
2.1/4-6 |
|
221 |
76 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
40 |
|
|
3 |
9 |
193 |
48 |
31.5 |
34 |
| 63 |
67 |
M64 |
|
2.1/2-4 |
|
2.1/4-4 |
2.1/2-6 |
|
224 |
79 |
|
|
|
|
|
|
| 67 |
75 |
M68 |
|
2.3/4-4 |
|
2.3/4-3.5 |
2.75-6 |
45 |
234 |
|
|
|
203 |
|
35.5 |
38 |
| 75 |
80 |
|
|
3-4 |
|
3-3.5 |
3-5 |
|
258 |
83 |
|
|
|
|
|
|
| 80 |
90 |
|
|
3.25-4 |
|
3.25-3.25 |
3.25-5 |
50 |
|
|
|
|
|
|
|
|
|
|
|
|
3.5-4 |
|
3.5-3.25 |
3.5-4.5 |
|
261 |
86 |
|
|
226 |
51 |
40 |
42 |
| 90 |
101.6 |
|
|
3.75-4 |
|
3.75-3 |
3.75-4.5 |
56 |
279 |
89 |
|
|
244 |
54 |
45 |
46 |
|
|
|
|
4¨ -4 |
|
4¨ -3 |
4-4.5 |
|
|
|
|
|
|
|
|
|
