Head sizes may differ from what is shown due to differences between metric standards length.
Bolt head size chart metric.
The chart below shows metric bolt conversions and din numbers for fasteners.
Us bolts head and wrench sizes hex bolt lag bolt square bolt and heavy hex bolt us hex bolts inches ansi asme b18 2 1 dimensions of hex bolts imperial units us hex bolts metric ansi asme b18 2 3m dimensions of hex bolts metric units.
Metric stud bolt to nut size chart.
Bolt diameter mm head wrench size mm ansi iso din.
Metric hex bolt diameters and thread pitches mm 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200 210 220.
Definitions of terms are located below the chart.
Metric bolt head wrench size.
Metric bolt conversion metric bolt conversion data for industrial bolts rods machine screws and small diameter fasteners from elgin fastener group includes metric to standard bolt conversions.
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Use the dimensions of your bolt to determine the appropriate size nut.
Length is measured from under the head to the end of the bolt note.