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Unit:mm

Metric Heavy Hex Nuts for Use with Structural Bolts (ASTM A563M)

ASME B 18.2.6M - 2012

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美标ASME B18.2.6M - 2012 ASME18.2.6M 18.2. Metric Heavy Hex Nuts for Use with Structural Bolts (ASTM A563M)
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Thread Size
d
M12 M16 M20 M22 M24 M27 M30 M36
P Thread Pitch
s max
min
e max
min
m max
min
1.75 2.00 2.50 2.50 3.00 3.00 3.50 4.00
21.00 27.00 34.00 36.00 41.00 46.00 50.00 60.00
20.16 26.16 33.00 35.00 40.00 45.00 49.00 58.80
24.25 31.18 39.26 41.57 47.34 53.12 57.74 69.28
22.78 29.56 37.29 39.55 45.20 50.85 55.37 66.44
12.3 17.1 20.7 23.6 24.2 27.6 30.7 36.6
11.9 16.4 19.4 22.3 22.9 26.3 29.1 35.0
①,Chemical and mechankal properties of heavy hex nuts shall conform to ASTM A563M property classes.
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