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Unit:mm

Cross Recessed Hexagon Head Tapping Screw With Indentation And Washer Assemblies With Plain Washers

GB /T 9074.20 - 2004

Display drawing:

国标GB /T9074.20 - 2004 GB9074.20 9074.20G Cross Recessed Hexagon Head Tapping Screw With Indentation And Washer Assemblies With Plain Washers
Thread Size
ST2.9 ST3.5 ST4.2 ST4.8 ST6.3 ST8
P
a max
k max
min
h Type N Nominal Size
Nominal Size
dc Type N max
max
1.1 1.3 1.4 1.6 1.8 2.1
1.1 1.3 1.4 1.6 1.8 2.1
2.3 2.6 3.0 3.8 4.7 6.0
2.0 2.3 2.6 3.3 4.1 5.2
1 1 1 1 1.6 1.6
1 1 1 1.6 1.6 2
7 8 9 10 14 16
9 11 12 15 18 24
①,Other dimension reference
Tapping Screw:GB 9456; washer :GB 97.5

Alternative history

GB /T 9074.20 - 1988 GB /T 9074.21 - 1988 GB /T 9074.20 - 2004
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Similar Standards

1 Hexagon Head Tapping Screw With Plain Washers [DIN EN ISO]
DIN EN ISO 10510 (S1) - 2011 		Hexagon Head Tapping Screw With Plain Washers
2 Hexagon Head Tapping Screw With Plain Washers [ISO]
ISO 10510 (S1) - 2011 		Hexagon Head Tapping Screw With Plain Washers
3 Hex Head Tapping Screw and Spring Washer Assemblies-SEMS (Type B Tapping Screw Thread Diameter) [ASME]
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ASME/ANSI B 18.13.1M - 2011 		Metric Hexagon Head Tapping Screws and Spring Washer Assemblies-SEMS (Screws Having Tapping Screw Thread Diameter)
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NF E 25-523 - 1999 		Hexagon Head Tapping Screw And Washer Assemblies With Plain Washers
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GB 9074.23 - 1988 		Hexagon Head Tapping Screw And Plain Washer Assemblies
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12 Hexagon head tapping screw and plain washer assemblies [JIS]
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13 Hexagon Head Tapping Screws And Plain Washesr Assemblies [JIS]
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14 Cross Recessed Hexagon Head Tapping Screw With Indentation And Plain Washer Assemblies [GB]
GB /T 9074.20 - 1988 		Cross Recessed Hexagon Head Tapping Screw With Indentation And Plain Washer Assemblies