ASME B18.2.4.1M Metric Hex Nut Style 1
ASME B18.2.4.1M Metric Hex Nut Standard covers the complete
general and
dimensional data for metric hex nuts, Style 1, recognized
as American National Standard.
The inclusion of dimensional data in this Standard
is not intended to imply that all of the nut sizes in
conjunction with the various options described herein
are stock items. Purchasers should consult with suppliers
concerning lists of stock production hex nuts, Style 1.
The Tables measurements are also converted into millimeters to make the information clearer and easier to
understand.
ASME B18.2.4.1M Metric Hex Nut Style 1 Dimensions (mm)
| Nominal Dia. | S | E | M | Dw | C | Total Runout of Bearing Surface FIM | ||||
|---|---|---|---|---|---|---|---|---|---|---|
| Width Across Flats | Width Across Corners | Thickness | Bearing Face Dia | Washer Face Thickness | ||||||
| Max. | Min. | Max. | Min. | Max. | Min. | Min. | Max. | Min. | Max. | |
| M1.6 | 3.20 | 3.02 | 3.70 | 3.41 | 1.30 | 1.05 | 2.3 | ... | ... | ... |
| M2 | 4.00 | 3.82 | 4.62 | 4.32 | 1.60 | 1.35 | 3.1 | ... | ... | ... |
| M2.5 | 5.00 | 4.82 | 5.77 | 5.45 | 2.00 | 1.75 | 4.1 | ... | ... | ... |
| M3 | 5.50 | 5.32 | 6.35 | 6.01 | 2.40 | 2.15 | 4.6 | ... | ... | ... |
| M3.5 | 6.00 | 5.82 | 6.93 | 6.58 | 2.80 | 2.55 | 5.1 | ... | ... | ... |
| M4 | 7.00 | 6.78 | 8.08 | 7.66 | 3.20 | 2.90 | 6.0 | ... | ... | ... |
| M5 | 8.00 | 7.78 | 9.24 | 8.79 | 4.70 | 4.40 | 7.0 | ... | ... | 0.30 |
| M6 | 10.00 | 9.78 | 11.55 | 11.05 | 5.20 | 4.90 | 8.9 | ... | ... | 0.33 |
| M8 | 13.00 | 12.73 | 15.01 | 14.38 | 6.80 | 6.44 | 11.6 | ... | ... | 0.36 |
| M10 | 15.00 | 14.73 | 17.32 | 16.64 | 9.10 | 8.70 | 13.6 | ... | ... | 0.39 |
| M10 | 16.00 | 15.73 | 18.45 | 17.77 | 8.40 | 8.04 | 14.6 | ... | ... | 0.39 |
| M12 | 18.00 | 17.73 | 20.78 | 20.03 | 10.80 | 10.37 | 16.6 | ... | ... | 0.42 |
| M14 | 21.00 | 20.67 | 24.25 | 23.35 | 12.80 | 12.10 | 19.4 | ... | ... | 0.45 |
| M16 | 24.00 | 23.67 | 27.71 | 26.75 | 14.80 | 14.10 | 22.4 | ... | ... | 0.48 |
| M20 | 30.00 | 29.16 | 34.64 | 32.95 | 18.00 | 16.90 | 27.9 | 0.8 | 0.4 | 0.56 |
| M24 | 36.00 | 35.00 | 41.57 | 39.55 | 21.50 | 20.20 | 32.5 | 0.8 | 0.4 | 0.64 |
| M30 | 46.00 | 45.00 | 53.12 | 50.85 | 25.60 | 24.30 | 42.5 | 0.8 | 0.4 | 0.76 |
| M36 | 55.00 | 53.80 | 63.51 | 60.79 | 31.00 | 29.40 | 50.8 | 0.8 | 0.4 | 0.89 |
ASME Material Specifications
ASTM A563M Carbon and Alloy
Steel Nuts [Metric]
ASTM F467M Nonferrous Nuts for
General Use [Metric]
ASTM F836M
Style 1 Stainless Steel Metric Nuts
ISO 4032 Hexagon Nuts,
Style 1 - Product Grades A
and B
ASTM A194/ASTM A194M Nuts
ASTM
A1014/A1014M UNS N07718 Bolting, Stud Bolts, Screws, Nuts
ASTM
A1082/A1082M Bolting, Stud Bolts, Screws, Nuts
ASTM
A453/A453M Bolting, Stud Bolts, Screws, Nuts
ASTM
F1554 Anchor Bolts, Anchor Rods
ASTM
F3111 Heavy Hex Bolts, Nuts, Washers
ASTM
F432 Roof Rock Bolts, Screws, Threaded
ASTM
F901 Aluminium Transmission Tower Bolts
ISO Material Specifications
ISO 898-2 Nuts
ISO 3506-2 Nuts
EN Material Specifications
EN 10269 Bolting Fasteners, Bolting, Stud Bolts, Screws, Nuts, Washers