Internal Metric Thread Table Chart Fastener Sizes M235 - M600
ISO Metric Hardware Engineering Data
Fastener and Screw / Bolt Design, Formula and Calculations
The following table chart are standard metric internal thread sizes M235 - M600 per. ANSI/ASME B1.13M-1995. These thread sizes and classes represent bolts and screws, as well, as other standard internal threads. Do not use these values for standard metric external thread design. All units in mm.
Where: H = P ( 31/2 / 2 ) = 0.866025 P |
| ISO Metric Thread Designation |
Pitch |
Metric Internal Threads Specification Table |
|||||||
| Tolerance Class |
Minor Dia |
Pitch Dia |
Major Dia |
Tap Drill |
|||||
| Min |
Max |
Min |
Max |
Min |
Max |
Basic |
|||
| M235x6 |
6 |
6H |
228.505 |
229.305 |
231.103 |
231.578 |
235.000 |
236.341 |
229.000 |
| M235x4 |
4 |
6H |
230.670 |
231.270 |
232.402 |
232.777 |
235.000 |
235.952 |
231.000 |
| M235x3 |
3 |
6H |
231.752 |
232.252 |
233.051 |
233.386 |
235.000 |
235.768 |
232.000 |
| M240x8 |
8 |
6H |
231.340 |
232.340 |
234.804 |
235.279 |
240.000 |
241.630 |
232.000 |
| M240x6 |
6 |
6H |
233.505 |
234.305 |
236.103 |
236.528 |
240.000 |
241.291 |
234.000 |
| M240x4 |
4 |
6H |
235.670 |
236.270 |
237.402 |
237.777 |
240.000 |
240.952 |
236.000 |
| M240x3 |
3 |
6H |
236.752 |
237.252 |
238.051 |
238.386 |
240.000 |
240.768 |
237.000 |
| M240x2 |
2 |
6H |
237.835 |
238.210 |
238.701 |
238.981 |
240.000 |
240.569 |
238.000 |
| M245x6 |
6 |
6H |
238.505 |
239.305 |
241.103 |
241.528 |
245.000 |
246.291 |
239.000 |
| M245x4 |
4 |
6H |
240.670 |
241.270 |
242.402 |
242.777 |
245.000 |
245.952 |
241.000 |
| M245x3 |
3 |
6H |
241.752 |
242.252 |
243.051 |
243.386 |
245.000 |
245.768 |
242.000 |
| M245x2 |
2 |
6H |
242.835 |
243.210 |
243.701 |
243.981 |
245.000 |
245.569 |
243.000 |
| M250x8 |
8 |
6H |
241.340 |
242.340 |
244.804 |
245.279 |
250.000 |
251.630 |
242.000 |
| M250x6 |
6 |
6H |
243.505 |
244.305 |
246.103 |
246.528 |
250.000 |
251.291 |
244.000 |
| M250x4 |
4 |
6H |
245.670 |
246.270 |
247.402 |
247.777 |
250.000 |
250.952 |
246.000 |
| M250x3 |
3 |
6H |
246.752 |
247.252 |
248.051 |
248.386 |
250.000 |
250.768 |
247.000 |
| M250x2 |
2 |
6H |
247.835 |
248.210 |
248.701 |
248.981 |
250.000 |
250.569 |
248.000 |
| M255x6 |
6 |
6H |
248.505 |
249.305 |
251.103 |
251.578 |
255.000 |
256.341 |
249.000 |
| M255x4 |
4 |
6H |
250.670 |
251.270 |
252.402 |
252.777 |
255.000 |
255.952 |
251.000 |
| M255x3 |
3 |
6H |
251.752 |
252.252 |
253.051 |
253.386 |
255.000 |
255.768 |
252.000 |
| M260x8 |
8 |
6H |
251.340 |
252.340 |
254.804 |
255.279 |
260.000 |
261.630 |
252.000 |
| M260x6 |
6 |
6H |
253.505 |
254.305 |
256.103 |
256.528 |
260.000 |
261.291 |
254.000 |
| M260x4 |
4 |
6H |
255.670 |
256.270 |
257.402 |
257.777 |
260.000 |
260.952 |
256.000 |
| M260x3 |
3 |
6H |
256.752 |
257.252 |
258.051 |
258.386 |
260.000 |
260.768 |
257.000 |
| M265x6 |
6 |
6H |
258.505 |
259.305 |
261.103 |
261.528 |
265.000 |
266.291 |
259.000 |
| M265x4 |
4 |
6H |
260.670 |
261.270 |
262.402 |
262.777 |
265.000 |
265.952 |
261.000 |
| M265x3 |
3 |
6H |
261.752 |
262.252 |
263.051 |
263.386 |
265.000 |
265.768 |
262.000 |
| M270x6 |
6 |
6H |
263.505 |
264.305 |
266.103 |
266.528 |
270.000 |
271.291 |
264.000 |
| M270x4 |
4 |
6H |
265.670 |
266.270 |
267.402 |
267.777 |
270.000 |
270.952 |
266.000 |
| M275x6 |
6 |
6H |
268.505 |
269.305 |
271.103 |
271.528 |
275.000 |
276.291 |
269.000 |
| M275x3 |
3 |
6H |
271.752 |
272.252 |
273.051 |
273.386 |
275.000 |
275.768 |
272.000 |
| M280x6 |
6 |
6H |
273.505 |
274.305 |
276.103 |
276.528 |
280.000 |
281.291 |
274.000 |
| M280x3 |
3 |
6H |
276.752 |
277.252 |
278.051 |
278.386 |
280.000 |
280.768 |
277.000 |
| M285x4 |
4 |
6H |
280.670 |
281.270 |
282.402 |
282.777 |
285.000 |
285.952 |
281.000 |
| M290x6 |
6 |
6H |
283.505 |
284.305 |
286.103 |
286.528 |
290.000 |
291.291 |
284.000 |
| M290x3 |
3 |
6H |
286.752 |
287.252 |
288.051 |
288.386 |
290.000 |
290.768 |
287.000 |
| M295x4 |
4 |
6H |
290.670 |
291.270 |
292.402 |
292.777 |
295.000 |
295.952 |
291.000 |
| M300x6 |
6 |
6H |
293.505 |
294.305 |
296.103 |
296.528 |
300.000 |
301.291 |
294.000 |
| M310x4 |
4 |
6H |
305.670 |
306.270 |
307.402 |
307.777 |
310.000 |
310.952 |
306.000 |
| M330x4 |
4 |
6H |
325.670 |
326.270 |
327.402 |
327.777 |
330.000 |
330.952 |
326.000 |
| M350x4 |
4 |
6H |
345.670 |
346.270 |
347.402 |
347.777 |
350.000 |
350.952 |
346.000 |
| M370x4 |
4 |
6H |
365.670 |
366.270 |
367.402 |
367.802 |
370.000 |
370.977 |
366.000 |
| M390x4 |
4 |
6H |
385.670 |
386.270 |
387.402 |
387.802 |
390.000 |
390.977 |
386.000 |
| M420x6 |
6 |
6H |
413.505 |
414.305 |
416.103 |
416.578 |
420.000 |
421.341 |
414.000 |
| M460x6 |
6 |
6H |
453.505 |
454.305 |
456.103 |
456.578 |
460.000 |
461.341 |
454.000 |
| M480x6 |
6 |
6H |
473.505 |
474.305 |
476.103 |
476.578 |
480.000 |
481.341 |
474.000 |
| M500x6 |
6 |
6H |
493.505 |
494.305 |
496.103 |
496.578 |
500.000 |
501.341 |
494.000 |
| M520x6 |
6 |
6H |
513.505 |
514.305 |
516.103 |
516.578 |
520.000 |
521.341 |
514.000 |
| M540x6 |
6 |
6H |
533.505 |
534.305 |
536.103 |
536.578 |
540.000 |
541.341 |
534.000 |
| M560x6 |
6 |
6H |
553.505 |
554.305 |
556.103 |
556.578 |
560.000 |
561.341 |
554.000 |
| M580x6 |
6 |
6H |
573.505 |
574.305 |
576.103 |
576.578 |
580.000 |
581.341 |
574.000 |
| M600x6 |
6 |
6H |
593.505 |
594.305 |
596.103 |
596.578 |
600.000 |
601.341 |
594.000 |
Related:
- ANSI Inch Unit Hardware Design Guide
- Length of Screw Thread Engagement per. ISO 965-1 Calculator, Formula and Table Length of engagement of mating threads is selected to utilize full tensile strength of a bolt prior to shearing and nut threads.
- Standard Internal Metric Thread and Fastener Sizes M 0.25 - M 8
- Internal Metric Thread and Fastener Sizes M 9 - M 24
- Internal Metric Thread and Fastener Sizes M 24 - M 50
- Internal Metric Thread and Fastener Sizes M52 - M72
- Internal Metric Thread and Fastener Sizes M75 - M120
- Internal Metric Thread and Fastener Sizes M125 - M180
- Internal Metric Thread and Fastener Sizes M185 - M230
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