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Technical drawing of the thread cross-section 30 degree flank angle trapezoidal thread

Trapezoidal Thread (Fine) DIN 103

This thread type is the fine thread variant of the metric ISO trapezoidal thread according to DIN 103. Compared to the metric standard trapezoidal thread, it has a smaller pitch. Trapezoidal threads have a profile in the shape of an isosceles trapezoid. Used as motion threads, they are not for fastening but to convert rotary motion into axial movement. They are typically used in lead screws on lathes or spindle screws on vices.

The DIN 103 fine trapezoidal thread has a flank angle of 30°.

The thread designation consists of three components: the abbreviation Tr, the nominal diameter, and the pitch in mm. For example, Tr 14 x 2.

The table below lists only the dimensions for the fine trapezoidal thread according to DIN 103. Thread tables for the trapezoidal thread often list pitches for both fine and standard threads in the same table. In addition to the thread designation, the external diameter and core hole diameter in mm are given. Dies and taps for the DIN 103 fine trapezoidal thread are available in various designs in our shop; simply follow the corresponding links.

To the overview thread standards
Thread Identifier
Diameter outside mm
Diameter Core hole mm
Taps in our online-shop
Dies in our online-shop
Tr 8 x 1,5
6,200
6,500
Link to the tap
Link to the thread cutting die
Tr 9 x 1,5
7,200
7,500
Link to the tap
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Tr 10 x 1,5
8,200
8,500
Link to the tap
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Tr 11 x 2
8,500
9,000
Link to the tap
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Tr 12 x 2
9,500
10,000
Link to the tap
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Tr 14 x 2
11,500
12,000
Link to the tap
Link to the thread cutting die
Tr 16 x 2
13,500
14,000
Link to the tap
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Tr 18 x 2
15,500
16,000
Link to the tap
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Tr 20 x 2
17,500
18,000
Link to the tap
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Tr 22 x 3
18,500
19,000
Link to the tap
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Tr 24 x 3
20,500
21,000
Link to the tap
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Tr 26 x 3
22,500
23,000
Link to the tap
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Tr 28 x 3
24,500
25,000
Link to the tap
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Tr 30 x 3
26,500
27,000
Link to the tap
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Tr 32 x 3
28,500
29,900
Link to the tap
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Tr 34 x 3
30,500
31,000
Link to the tap
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Tr 36 x 3
32,500
33,000
Link to the tap
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Tr 38 x 3
34,500
35,000
Link to the tap
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Tr 40 x 3
36,500
37,000
Link to the tap
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Tr 42 x 3
38,500
39,000
Link to the tap
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Tr 44 x 3
40,500
41,000
Link to the tap
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Tr 46 x 3
42,500
43,000
Link to the tap
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Tr 48 x 3
44,500
45,000
Link to the tap
Link to the thread cutting die
Tr 50 x 3
46,500
47,000
Link to the tap
Link to the thread cutting die
Tr 52 x 3
48,500
49,000
Link to the tap
Link to the thread cutting die
Tr 55 x 3
51,500
52,000
Link to the tap
Link to the thread cutting die
Tr 60 x 3
56,500
57,000
Link to the tap
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Tr 65 x 4
60,500
61,000
Link to the tap
Link to the thread cutting die
Tr 70 x 4
65,500
66,000
Link to the tap
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Tr 75 x 4
70,500
71,000
Link to the tap
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Tr 80 x 4
75,500
76,000
Link to the tap
Link to the thread cutting die
Tr 85 x 4
80,500
81,000
Link to the tap
Link to the thread cutting die
Tr 90 x 4
85,500
86,000
Link to the tap
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Tr 95 x 4
90,500
91,000
Link to the tap
Link to the thread cutting die
Tr 100 x 4
95,500
96,000
Link to the tap
Link to the thread cutting die
Tr 105 x 4
100,500
101,000
Link to the tap
Link to the thread cutting die
Tr 110 x 4
105,500
106,000
Link to the tap
Link to the thread cutting die
Tr 115 x 6
108,000
109,000
Link to the tap
Link to the thread cutting die
Tr 120 x 6
113,000
114,000
Link to the tap
Link to the thread cutting die
Tr 125 x 6
118,000
119,000
Link to the tap
Link to the thread cutting die
Tr 130 x 6
123,000
124,000
Link to the tap
Link to the thread cutting die
Tr 135 x 6
128,000
129,000
Link to the tap
Link to the thread cutting die
Tr 140 x 6
133,000
134,000
Link to the tap
Link to the thread cutting die
Tr 145 x 6
138,000
139,000
Link to the tap
Link to the thread cutting die
Tr 150 x 6
143,000
144,000
Link to the tap
Link to the thread cutting die
Tr 155 x 6
148,000
149,000
Link to the tap
Link to the thread cutting die
Tr 160 x 6
153,000
154,000
Link to the tap
Link to the thread cutting die
Tr 165 x 6
158,000
159,000
Link to the tap
Link to the thread cutting die
Tr 170 x 6
163,000
164,000
Link to the tap
Link to the thread cutting die
Tr 175 x 8
166,000
167,000
Link to the tap
Link to the thread cutting die
Tr 180 x 8
171,000
172,000
Link to the tap
Link to the thread cutting die
Tr 185 x 8
176,000
177,000
Link to the tap
Link to the thread cutting die
Tr 190 x 8
181,000
182,000
Link to the tap
Link to the thread cutting die
Tr 195 x 8
186,000
187,000
Link to the tap
Link to the thread cutting die
Tr 200 x 8
191,000
192,000
Link to the tap
Link to the thread cutting die
Tr 210 x 8
201,000
202,000
Link to the tap
Link to the thread cutting die
Tr 220 x 8
211,000
212,000
Link to the tap
Link to the thread cutting die
Tr 230 x 8
221,000
222,000
Link to the tap
Link to the thread cutting die
Tr 240 x 8
231,000
232,000
Link to the tap
Link to the thread cutting die
Tr 250 x 12
237,000
238,000
Link to the tap
Link to the thread cutting die
Tr 260 x 12
247,000
248,000
Link to the tap
Link to the thread cutting die
Tr 270 x 12
257,000
258,000
Link to the tap
Link to the thread cutting die
Tr 280 x 12
267,000
268,000
Link to the tap
Link to the thread cutting die
Tr 290 x 12
277,000
278,000
Link to the tap
Link to the thread cutting die
Tr 300 x 12
287,000
288,000
Link to the tap
Link to the thread cutting die