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ISO Metric Hexagon Head Screws - Product Grades A And B

AS 1110.2 - 2000

Display drawing:

Screw Thread M20
D 20
P 2.5
A Max 7.5
A Min 2.5
C Max 0.8
C Min 0.2
Da Max 22.4
Dw Grade A Min 28.19
Dw Grade B Min 27.7
E Grade A Min 33.53
E Grade B Min 32.95
K Nominal 12.5
K Grade A Max 12.715
K Grade A Min 12.285
K Grade B Max 12.85
K Grade B Min 12.15
K1 Grade A Min 8.6
K1 Grade B Min 8.51
R Min 0.8
S Max 30
S Grade A Min 29.67
S Grade B Min 29.16