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DIN 20400 (Rd) Metric Knuckle Screw Thread

INDEX of THREAD DATA CHARTS

DIN 20400 Rd Metric Knuckle Screw Thread Data Charts

Knuckle Thread DIN 405



Caution:
There are two specifications which use the designation: Rd. The two specifications are not identical
The two specifications are DIN 405 and DIN 20400. Make your thread selection with caution.

Limits and Tolerances for External Screw Threads given in mm 
Thread Designation
Major Diameter
Pitch Diameter
Minor Diameter
MAX
MIN
MAX
MIN
MAX
MIN
Rd10x3
10.000
9.760
8.500
8.260
6.700
6.460
Rd12x3
12.000
11.760
10.500
10.260
8.700
8.460
Rd14x3
14.000
13.760
12.500
12.260
10.700
10.460
Rd16x4
16.000
15.680
14.000
13.680
11.600
11.280
Rd18x4
18.000
17.680
16.000
15.680
13.600
13.280
Rd20x4
20.000
19.680
18.000
17.680
15.600
15.280
Rd22x4
22.000
21.680
20.000
19.680
17.600
17.280
Rd25x4
25.000
24.680
23.000
22.680
20.600
20.280
Rd28x4
28.000
27.680
26.000
25.680
23.600
23.280
Rd32x4
32.000
31.680
30.000
29.680
27.600
27.280
Rd36x5
36.000
35.600
33.500
33.100
30.500
30.100
Rd40x5
40.000
39.600
37.500
37.100
34.500
34.100
Rd42x5
42.000
41.600
39.500
39.100
36.500
36.100
Rd45x5
45.000
44.600
42.500
42.100
39.500
39.100
Rd48x5
48.000
47.600
45.500
45.100
42.500
42.100
Rd50x5
50.000
49.600
47.500
47.100
44.500
44.100
Rd53x5
53.000
52.600
50.500
50.100
47.500
47.100
Rd56x5
56.000
55.600
53.500
53.100
50.500
50.100
Rd60x6
60.000
59.520
57.000
56.520
53.400
52.920
Rd63x6
63.000
62.520
60.000
59.520
56.400
55.920
Rd67x6
67.000
66.520
64.000
63.520
60.400
59.920
Rd70x6
70.000
69.520
67.000
66.520
63.400
62.920
Rd75x6
75.000
74.520
72.000
71.520
68.400
67.920
Rd80x6
80.000
79.520
77.000
76.520
73.400
72.920
Rd85x6
85.000
84.520
82.000
81.520
78.400
77.920
Rd90x8
90.000
89.360
86.000
85.360
81.200
80.560
Rd95x8
95.000
94.360
94.000
93.360
86.200
85.560
Rd100x8
100.000
99.360
96.000
95.360
91.200
90.560
Rd106x8
106.000
105.360
102.000
101.360
97.200
96.560
Rd112x8
112.000
111.360
108.000
107.360
103.200
102.560
Rd118x8
118.000
117.360
114.000
113.360
109.200
108.560
Rd125x8
125.000
124.360
121.000
120.360
116.200
115.560
Rd132x10
132.000
131.200
127.000
126.200
121.000
120.200
Rd140x10
140.000
139.200
135.000
134.200
129.000
128.200
Rd150x10
150.000
149.200
145.000
144.200
139.000
138.200
Rd160x10
160.000
159.200
155.000
154.200
149.000
148.300
Rd170x10
170.000
169.200
165.000
164.200
159.000
158.200
Rd180x12
180.000
179.040
174.000
173.040
166.800
165.840
Rd190x12
190.000
189.040
184.000
183.040
176.800
175.840
Rd200x12
200.000
199.040
194.000
193.040
186.800
185.840
Rd212x12
212.000
211.040
206.000
205.040
198.800
197.840
Rd224x12
224.000
223.040
218.000
217.040
210.800
209.840
Rd236x16
236.000
234.720
228.000
223.720
218.400
217.120
Rd250x16
250.000
248.720
242.000
240.720
232.400
231.120
Rd265x16
265.000
263.720
257.000
255.720
247.400
246.120
Rd280x16
280.000
278.720
272.000
270.720
262.400
261.120
Rd300x16
300.000
298.720
292.000
290.720
282.400
281.120
 

 

Limits and Tolerances for Internal Screw Threads given in mm 
Thread Designation
Major Diameter
Pitch Diameter
Minor Diameter
MIN
MAX
MIN
MAX
MIN
MAX
Rd10x3
10.300
10.540
8.500
8.740
7.000
7.240
Rd12x3
12.300
12.540
10.500
10.740
9.000
9.240
Rd14x3
14.300
14.540
12.500
12.740
11.000
11.240
Rd16x4
16.400
16.720
14.000
14.320
12.000
12.320
Rd18x4
18.400
18.720
16.000
16.320
14.000
14.320
Rd02x4
20.400
20.720
18.000
18.320
16.000
16.320
Rd22x4
22.400
22.720
20.000
20.320
18.000
18.320
Rd25x4
25.400
25.720
23.000
23.320
21.000
21.320
Rd28x4
28.400
28.720
26.000
26.320
24.000
24.320
Rd32x4
32.400
32.720
30.000
30.320
28.000
28.320
Rd36x5
36.500
36.900
33.500
33.900
31.000
31.400
Rd40x5
40.500
40.900
37.500
37.900
35.000
35.400
Rd42x5
42.500
42.900
39.500
39.900
37.000
37.400
Rd45x5
45.500
45.900
42.500
42.900
40.000
40.400
Rd48x5
48.500
48.900
45.900
45.900
43.000
43.400
Rd50x5
50.500
50.900
47.500
47.900
45.000
45.400
Rd53x5
53.500
53.900
50.500
50.900
48.000
48.400
Rd56x5
56.500
56.900
53.500
53.900
51.000
51.400
Rd60x6
60.600
61.080
57.000
57.480
54.000
54.480
Rd63x6
63.600
64.080
60.000
60.480
57.000
57.480
Rd67x6
67.600
68.080
64.000
64.480
61.000
61.480
Rd70x6
703.600
71.080
67.000
67.480
54.000
64.480
Rd75x6
75.600
76.080
72.000
72.480
69.000
69.480
Rd80x6
80.600
81.080
77.000
77.480
74.000
74.480
Rd85x6
85.600
86.080
82.000
82.480
79.000
79.480
Rd90x8
90.800
91.440
86.000
86.640
82.000
82.640
Rd95x8
95.800
96.440
91.000
91.640
87.000
87.640
Rd100x8
100.800
101.440
96.000
96.640
92.000
92.640
Rd106x8
106.800
107.440
102.000
102.640
98.000
98.640
Rd112x8
112.800
113.440
108.000
108.640
104.000
104.640
Rd118x8
118.800
119.440
114.000
114.640
110.000
110.640
Rd125x8
125.800
126.440
121.000
121.640
117.000
117.640
Rd132x10
133.000
133.800
127.000
127.800
122.000
122.800
Rd140x10
141.000
141.800
135.000
135.800
130.000
130.800
Rd150x10
151.000
151.800
145.000
145.800
140.000
140.800
Rd160x10
161.000
161.800
155.000
155.800
150.000
150.800
Rd170x10
171.000
171.800
165.000
165.800
160.000
160.800
Rd180x12
181.200
182.160
174.000
175.960
168.000
168.960
Rd190x12
191.200
192.160
184.000
184.960
178.000
178.960
Rd200x12
201.200
202.160
194.000
194.960
188.000
188.960
Rd212x12
213.200
214.160
206.000
206.960
200.000
200.960
Rd224x12
225.200
226.160
218.000
218.960
212.000
212.960
Rd236x16
237.600
238.880
228.000
229.280
220.000
221.280
Rd250x16
251.600
252.880
242.000
243.280
234.000
235.280
Rd265x16
266.600
267.880
257.000
258.280
249.000
250.280
Rd280x16
281.600
282.880
272.000
273.280
264.000
265.280
Rd300x16
301.600
302.880
292.000
293.280
284.000
285.280
 

Disclaimer
This data is provided as a brief overview of the standard and for general information only. The intention is to provide accurate information; regardless; errors may exist in the supplied information. The actual standard contains much additional information. If accuracy is critical, base your final decisions on the data provided in the root document: DIN 20400 (this data was taken from DIN 20400:1990); which is a copyrighted document. To purchase a copy visit an Authorized Reseller.

Original Posting: 2/28/2008
Last Revision: 1/23/2017
Error corrections in, or comments about, the above data can be sent to: gageguy@gagecrib.com

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