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Click Specification

Same specifications, different dimensions for other parts.

Unit:mm

Square Nuts-Product Grade C

DIN 557 - 1994

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德标DIN 557 - 1994 DIN557 557DIN Square Nuts-Product Grade C
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Calculate weight and price. Weight 1000 pcs : kg x $ per kg = $ 1000 pcs
Default density g/cm3
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Choose materials based on density.(g/cm3)

  • Carbon Steel 7.85
  • Stainless Steel 8.1
  • Stainless Steel 7.95
  • Stainless Steel 7.7
  • Titanium Alloy 4.5
  • Aluminum Alloy 2.8
  • Copper 8.89


Select here or enter material density on the calculation page.
Thread Size
d
M5 M6 M8 M10
SW16 		M10 M12
SW18 		M12 M16
P Pitch
dw min
e max
min
m max=nominal size
min
m1 min
s max=nominal size
min
per 1000 units ≈ kg
0.8 1 1.25 1.5 1.5 1.75 1.75 2
6.7 8.7 11.5 14.5 15.5 16.5 17.2 22
11.3 14.1 18.4 22.6 24 25.4 26.9 33.9
9.93 12.53 16.34 20.24 21.54 22.84 24.02 30.11
4 5 6.5 8 8 10 10 l3
3.52 4.52 5.92 7.42 7.42 9.42 9.42 12.3
2.5 3.2 4.1 5.2 5.2 6.6 6.6 8.6
8 10 13 16 17 18 19 24
7.64 9.64 12.57 15.57 16.57 17.57 18.48 23.16
1.31 2.77 5.5 10.7 13 16.3 19.1 38.2
①,If M10 and M12 nuts are required to be supplied according to the widths across flats of 16mm and 18mm specified in ISO 272, the widths across flats (SW) shall be added to the mark
②,Material:
a)Steel, Property class: 5 As specified in DIN EN 20898-2
b) Nut of property class 5 shall be made of steel conforming to the chemical composition Cmax 0.5%；Pmax 0.06%；Smax 0.15%。Nuts of these property classes may be manufactured form free-cutting steel manufacturer. In shuc cases, the following maximum sulfur, phosphorus ans lead contents are permissible: sulfur 0.34%; phosphorus 0.11% ; lead 0.35%. As specified in DIN EN 20898-12

Alternative history

DIN 557 - 1985 DIN 557 - 1994
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