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Thin, style 2 and fine-pitch metric hex nuts (ISO 4035, ISO 4033, ISO 8673, ISO 8675): width across flats, height, M1.6–M64
What are the across-flats width and height of a thin (jam) nut, a style 2 (high) nut or a fine-pitch hex nut? · Standard part · basis: fasten.it reprints of DIN EN ISO 4035 (2001), 4033 (2013 / 2001), 8673 (2013) and 8675 (2001): s, e min, m max, m min as printed, mm; 16 envelope files for ISO 4035 and ISO 4033 M5–M24
Also called: m10 jam nut thickness, iso 4035 m12 thin nut, m8 thin nut height, m10 style 2 nut, fine thread m10x1 nut, m12x1.25 nut dimensions, metric jam nut dimensions, m16 thin nut across flats, iso 4033 nut height, m8x1 nut, iso 8675 thin nut, m20x1.5 nut size
Exact dimensions. Every file is drawn at true size with no tolerance added. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your process's clearance before making the part. Mating features
- length
- 27.7 mm
- width
- 24.0 mm
- height
- 23.9 mm
Notes
- Four ISO nut forms beside the regular style 1 nut (ISO 4032, on hex-nuts-metric and hex-nuts-metric-m10-m24): ISO 4035 thin nut (chamfered, 'style 0', the metric jam nut): e.g. m max 5.0 mm at M10 against 8.4 mm for ISO 4032; ISO 4033 style 2 (high nut), M5–M36, taller than style 1 (M10 9.30 mm); ISO 8673 style 1 and ISO 8675 thin nut with a metric fine-pitch thread (M8x1 to M64x4). Across flats s is the same for all four forms at a given size (M10 16, M12 18, M16 24, M20 30, M24 36 mm).
- Fine pitch: ISO 8673 and 8675 print the same s, e min and m max as the coarse-pitch nuts of the same thread diameter (ISO 8673 m max equals ISO 4032 at M10 8.4, M12 10.8; ISO 8675 m max equals ISO 4035 at every size), so the fine-pitch envelope is the coarse one with a different thread; the thread pitch is the only change and is not drawn. Where a diameter has two fine pitches (M10x1 / 1.25, M12x1.25 / 1.5, M20x1.5 / 2) the sources print one row.
- What is not on the page: fasten.it's ISO 4035 table gives m min but no s min, dw min or da; its ISO 4033 table adds d1 and c max (not defined on the page; not used); the 8673 and 8675 tables give no m min. One source oddity: ISO 8673 and 8675 print e min 82.6 for M48x3 where the ISO 4035 table prints 83.91 for M48 (the other sizes match between them).
- Files: ISO 4035 thin and ISO 4033 style 2 nuts at M5, M6, M8, M10, M12, M16, M20, M24, a hexagonal prism at s and m max with a plain bore at the thread major diameter (no chamfer, no thread). Fine-pitch envelopes are identical to the coarse ones and are not duplicated.
Thin, style 2 and fine-pitch metric hex nuts (ISO 4035, ISO 4033… size chart
| standard | thread | pitch (mm) | s across flats | e across corners min | m max (height) | m min |
|---|---|---|---|---|---|---|
| ISO 4035 thin (style 0) | M1.6 | 0.35 | 3.2 | 3.41 | 1 | 0.75 |
| ISO 4035 thin (style 0) | M2 | 0.4 | 4 | 4.32 | 1.2 | 0.95 |
| ISO 4035 thin (style 0) | M2.5 | 0.45 | 5 | 5.45 | 1.6 | 1.35 |
| ISO 4035 thin (style 0) | M3 | 0.5 | 5.5 | 6.01 | 1.8 | 1.55 |
| ISO 4035 thin (style 0) | M3.5 | 0.6 | 6 | 6.58 | 2 | 1.75 |
| ISO 4035 thin (style 0) | M4 | 0.7 | 7 | 7.66 | 2.2 | 1.95 |
| ISO 4035 thin (style 0) | M5 | 0.8 | 8 | 8.79 | 2.7 | 2.45 |
| ISO 4035 thin (style 0) | M6 | 1 | 10 | 11.05 | 3.2 | 2.9 |
| ISO 4035 thin (style 0) | M8 | 1.25 | 13 | 14.38 | 4 | 3.7 |
| ISO 4035 thin (style 0) | M10 | 1.5 | 16 | 17.77 | 5 | 4.7 |
| ISO 4035 thin (style 0) | M12 | 1.75 | 18 | 20.03 | 6 | 5.7 |
| ISO 4035 thin (style 0) | M14 | 2 | 21 | 23.35 | 7 | 6.42 |
| ISO 4035 thin (style 0) | M16 | 2 | 24 | 26.75 | 8 | 7.42 |
| ISO 4035 thin (style 0) | M18 | 2.5 | 27 | 29.56 | 9 | 8.42 |
| ISO 4035 thin (style 0) | M20 | 2.5 | 30 | 32.95 | 10 | 9.1 |
| ISO 4035 thin (style 0) | M22 | 2.5 | 34 | 37.29 | 11 | 9.9 |
| ISO 4035 thin (style 0) | M24 | 3 | 36 | 39.55 | 12 | 10.9 |
| ISO 4035 thin (style 0) | M27 | 3 | 41 | 45.20 | 13.5 | 12.4 |
| ISO 4035 thin (style 0) | M30 | 3.5 | 46 | 50.85 | 15 | 13.9 |
| ISO 4035 thin (style 0) | M33 | 3.5 | 50 | 55.37 | 16.5 | 15.4 |
| ISO 4035 thin (style 0) | M36 | 4 | 55 | 60.79 | 18 | 16.9 |
| ISO 4035 thin (style 0) | M39 | 4 | 60 | 66.44 | 19.5 | 18.2 |
| ISO 4035 thin (style 0) | M42 | 4.5 | 65 | 71.3 | 21 | 19.7 |
| ISO 4035 thin (style 0) | M45 | 4.5 | 70 | 76.95 | 22.5 | 21.2 |
| ISO 4035 thin (style 0) | M48 | 5 | 75 | 83.91 | 24 | 22.7 |
| ISO 4035 thin (style 0) | M52 | 5 | 80 | 88.25 | 26 | 24.7 |
| ISO 4035 thin (style 0) | M56 | 5.5 | 85 | 93.56 | 28 | 26.7 |
| ISO 4035 thin (style 0) | M60 | 5.5 | 90 | 99.21 | 30 | 28.7 |
| ISO 4035 thin (style 0) | M64 | 6 | 95 | 104.86 | 32 | 30.4 |
| ISO 4033 style 2 (high) | M5 | coarse | 8 | 8.79 | 5.1 | 4.8 |
| ISO 4033 style 2 (high) | M6 | coarse | 10 | 11.05 | 5.7 | 5.4 |
| ISO 4033 style 2 (high) | M8 | coarse | 13 | 14.38 | 7.50 | 7.14 |
| ISO 4033 style 2 (high) | M10 | coarse | 16 | 17.77 | 9.30 | 8.94 |
| ISO 4033 style 2 (high) | M12 | coarse | 18 | 20.03 | 12 | 11.57 |
| ISO 4033 style 2 (high) | M14 | coarse | 21 | 23.36 | 14.1 | 13.4 |
| ISO 4033 style 2 (high) | M16 | coarse | 24 | 26.75 | 16.4 | 15.7 |
| ISO 4033 style 2 (high) | M20 | coarse | 30 | 32.95 | 20.3 | 19 |
| ISO 4033 style 2 (high) | M24 | coarse | 36 | 39.55 | 23.9 | 22.6 |
| ISO 4033 style 2 (high) | M30 | coarse | 46 | 50.85 | 28.6 | 27.3 |
| ISO 4033 style 2 (high) | M36 | coarse | 55 | 60.79 | 34.7 | 33.1 |
| ISO 8673 fine pitch, style 1 | M8x1 | 1 | 13 | 14.38 | 6.8 | – |
| ISO 8673 fine pitch, style 1 | M10x1–1.25 | 1–1.25 | 16 | 17.77 | 8.4 | – |
| ISO 8673 fine pitch, style 1 | M12x1.25–1.5 | 1.25–1.5 | 18 | 20.03 | 10.8 | – |
| ISO 8673 fine pitch, style 1 | M14x1.5 | 1.5 | 21 | 23.36 | 12.8 | – |
| ISO 8673 fine pitch, style 1 | M16x1.5 | 1.5 | 24 | 26.75 | 14.8 | – |
| ISO 8673 fine pitch, style 1 | M18x1.5 | 1.5 | 27 | 29.56 | 15.8 | – |
| ISO 8673 fine pitch, style 1 | M20x1.5–2 | 1.5–2 | 30 | 32.95 | 18 | – |
| ISO 8673 fine pitch, style 1 | M22x1.5 | 1.5 | 34 | 37.29 | 19.4 | – |
| ISO 8673 fine pitch, style 1 | M24x2 | 2 | 36 | 39.55 | 21.5 | – |
| ISO 8673 fine pitch, style 1 | M27x2 | 2 | 41 | 45.2 | 23.8 | – |
| ISO 8673 fine pitch, style 1 | M30x2 | 2 | 46 | 50.85 | 25.6 | – |
| ISO 8673 fine pitch, style 1 | M33x2 | 2 | 50 | 55.37 | 28.7 | – |
| ISO 8673 fine pitch, style 1 | M36x3 | 3 | 55 | 60.79 | 31 | – |
| ISO 8673 fine pitch, style 1 | M39x3 | 3 | 60 | 66.44 | 33.4 | – |
| ISO 8673 fine pitch, style 1 | M42x3 | 3 | 65 | 71.3 | 34 | – |
| ISO 8673 fine pitch, style 1 | M45x3 | 3 | 70 | 76.95 | 36 | – |
| ISO 8673 fine pitch, style 1 | M48x3 | 3 | 75 | 82.6 | 38 | – |
| ISO 8673 fine pitch, style 1 | M52x4 | 4 | 80 | 88.25 | 42 | – |
| ISO 8673 fine pitch, style 1 | M56x4 | 4 | 85 | 93.56 | 45 | – |
| ISO 8673 fine pitch, style 1 | M60x4 | 4 | 90 | 99.21 | 48 | – |
| ISO 8673 fine pitch, style 1 | M64x4 | 4 | 95 | 104.86 | 51 | – |
| ISO 8675 fine pitch, thin | M8x1 | 1 | 13 | 14.38 | 4 | – |
| ISO 8675 fine pitch, thin | M10x1–1.25 | 1–1.25 | 16 | 17.77 | 5 | – |
| ISO 8675 fine pitch, thin | M12x1.25–1.5 | 1.25–1.5 | 18 | 20.03 | 6 | – |
| ISO 8675 fine pitch, thin | M14x1.5 | 1.5 | 21 | 23.36 | 7 | – |
| ISO 8675 fine pitch, thin | M16x1.5 | 1.5 | 24 | 26.75 | 8 | – |
| ISO 8675 fine pitch, thin | M18x1.5 | 1.5 | 27 | 29.56 | 9 | – |
| ISO 8675 fine pitch, thin | M20x1.5–2 | 1.5–2 | 30 | 32.95 | 10 | – |
| ISO 8675 fine pitch, thin | M22x1.5 | 1.5 | 34 | 37.29 | 11 | – |
| ISO 8675 fine pitch, thin | M24x2 | 2 | 36 | 39.55 | 12 | – |
| ISO 8675 fine pitch, thin | M27x2 | 2 | 41 | 45.2 | 13.5 | – |
| ISO 8675 fine pitch, thin | M30x2 | 2 | 46 | 50.85 | 15 | – |
| ISO 8675 fine pitch, thin | M33x2 | 2 | 50 | 55.37 | 16.5 | – |
| ISO 8675 fine pitch, thin | M36x3 | 3 | 55 | 60.79 | 18 | – |
| ISO 8675 fine pitch, thin | M39x3 | 3 | 60 | 66.44 | 19.5 | – |
| ISO 8675 fine pitch, thin | M42x3 | 3 | 65 | 71.3 | 21 | – |
| ISO 8675 fine pitch, thin | M45x3 | 3 | 70 | 76.95 | 22.5 | – |
| ISO 8675 fine pitch, thin | M48x3 | 3 | 75 | 82.6 | 24 | – |
| ISO 8675 fine pitch, thin | M52x4 | 4 | 80 | 88.25 | 26 | – |
| ISO 8675 fine pitch, thin | M56x4 | 4 | 85 | 93.56 | 28 | – |
| ISO 8675 fine pitch, thin | M60x4 | 4 | 90 | 99.21 | 30 | – |
| ISO 8675 fine pitch, thin | M64x4 | 4 | 95 | 104.86 | 32 | – |
Mating features
Drawn at the exact size. Open press, slide, run and socket features by your process's clearance (tolerances by process); leave designed gaps and clamp fits as drawn.
| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| bore (thread as plain cylinder) | Ø5, 6, 8, 10, 12, 16, 20, 24 mm at the thread major (thin and style 2 files) | bolt or screw of the same thread (hex-head-screws-metric-m10-m24, socket-head-cap-screws-metric); a thin nut jams against a standard nut | designed | all |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| fasten.it | DIN EN ISO 4035 hexagon thin nuts chamfered (style 0), product grades A and B, 03/2001: pitch, e min, m max, m min, s | web | Publisher's page; dimensions are facts |
| fasten.it | DIN EN ISO 4033 hexagon nuts style 2 (high nuts), M5 to M36, 04/2013 and 03/2001: s, h min / max (= m), e min, d1, c max | web | Publisher's page; dimensions are facts |
| fasten.it | DIN EN ISO 8673 hexagon nuts style 1 with metric fine pitch thread, 04/2013: s, e min, m max, M8x1 to M64x4 | web | Publisher's page; dimensions are facts |
| fasten.it | DIN EN ISO 8675 hexagon thin nuts chamfered with metric fine pitch thread, 2001: s, e min, m max, M8x1 to M64x4 | web | Publisher's page; dimensions are facts |
Free files
★ Free files 16 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| hex-thin-nut-iso-4035-m5 | ISO 4035 thin nut M5 envelope: hexagon 8 mm across flats x 2.7 mm (m max), plain bore Ø5 mm at the thread major, thread not drawn | STEP · STL |
| hex-nut-style2-iso-4033-m5 | ISO 4033 style 2 nut M5 envelope: hexagon 8 mm across flats x 5.1 mm (m max), plain bore Ø5 mm at the thread major, thread not drawn | STEP · STL |
| hex-thin-nut-iso-4035-m6 | ISO 4035 thin nut M6 envelope: hexagon 10 mm across flats x 3.2 mm (m max), plain bore Ø6 mm at the thread major, thread not drawn | STEP · STL |
| hex-nut-style2-iso-4033-m6 | ISO 4033 style 2 nut M6 envelope: hexagon 10 mm across flats x 5.7 mm (m max), plain bore Ø6 mm at the thread major, thread not drawn | STEP · STL |
| hex-thin-nut-iso-4035-m8 | ISO 4035 thin nut M8 envelope: hexagon 13 mm across flats x 4 mm (m max), plain bore Ø8 mm at the thread major, thread not drawn | STEP · STL |
| hex-nut-style2-iso-4033-m8 | ISO 4033 style 2 nut M8 envelope: hexagon 13 mm across flats x 7.50 mm (m max), plain bore Ø8 mm at the thread major, thread not drawn | STEP · STL |
| hex-thin-nut-iso-4035-m10 | ISO 4035 thin nut M10 envelope: hexagon 16 mm across flats x 5 mm (m max), plain bore Ø10 mm at the thread major, thread not drawn | STEP · STL |
| hex-nut-style2-iso-4033-m10 | ISO 4033 style 2 nut M10 envelope: hexagon 16 mm across flats x 9.30 mm (m max), plain bore Ø10 mm at the thread major, thread not drawn | STEP · STL |
| hex-thin-nut-iso-4035-m12 | ISO 4035 thin nut M12 envelope: hexagon 18 mm across flats x 6 mm (m max), plain bore Ø12 mm at the thread major, thread not drawn | STEP · STL |
| hex-nut-style2-iso-4033-m12 | ISO 4033 style 2 nut M12 envelope: hexagon 18 mm across flats x 12 mm (m max), plain bore Ø12 mm at the thread major, thread not drawn | STEP · STL |
| hex-thin-nut-iso-4035-m16 | ISO 4035 thin nut M16 envelope: hexagon 24 mm across flats x 8 mm (m max), plain bore Ø16 mm at the thread major, thread not drawn | STEP · STL |
| hex-nut-style2-iso-4033-m16 | ISO 4033 style 2 nut M16 envelope: hexagon 24 mm across flats x 16.4 mm (m max), plain bore Ø16 mm at the thread major, thread not drawn | STEP · STL |
| hex-thin-nut-iso-4035-m20 | ISO 4035 thin nut M20 envelope: hexagon 30 mm across flats x 10 mm (m max), plain bore Ø20 mm at the thread major, thread not drawn | STEP · STL |
| hex-nut-style2-iso-4033-m20 | ISO 4033 style 2 nut M20 envelope: hexagon 30 mm across flats x 20.3 mm (m max), plain bore Ø20 mm at the thread major, thread not drawn | STEP · STL |
| hex-thin-nut-iso-4035-m24 | ISO 4035 thin nut M24 envelope: hexagon 36 mm across flats x 12 mm (m max), plain bore Ø24 mm at the thread major, thread not drawn | STEP · STL |
| hex-nut-style2-iso-4033-m24 | ISO 4033 style 2 nut M24 envelope: hexagon 36 mm across flats x 23.9 mm (m max), plain bore Ø24 mm at the thread major, thread not drawn | STEP · STL |
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Questions
How thick is an M10 thin (jam) nut?
ISO 4035: m max 5 mm, m min 4.7 mm; across flats 16 mm.
How tall is a style 2 M12 nut?
ISO 4033: m max 12 mm, m min 11.57 mm; across flats 18 mm (the style 1 ISO 4032 nut is 10.8 mm).
Is a fine-pitch M10x1 nut a different size from M10?
No: ISO 8673 prints s 16 mm and m max 8.4 mm for M10x1 and M10x1.25, the same as the coarse M10 nut; only the thread pitch differs.