Length is measured from under the head to the end of the bolt note.
Metric hex head bolts dimensions.
Metric hex head bolts have a hex head and coarse or fine machine screw threads.
Select from partially threaded or fully threaded.
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Metric bolt head wrench size.
For partially threaded the minimum thread length is longer for larger bolt sizes.
All short lengths are fully threaded.
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A hex drive permits a greater torque load to be applied to the joint over most other drive types.
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Turn these metric screws by hand using the hex head or tighten them with a wrench for extra torque.
A hex head bolt is designed to be tightened with a standard spanner or ratchet and socket.
Head sizes may differ from what is shown due to differences between metric standards.
With an extended tip that locks into a mating hole or slot sometimes known as a dog point they are often used to align and secure parts such as gears and pulley wheels.
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.
Nominal screw sizes m5 and larger have six drilled holes spaced 60 degrees apart unless the purchaser specifies two drilled holes.
Drilled head metric hexagon socket head cap screws normally are not available in screw sizes smaller than m3 nor larger than m36.
Self tapping screws metric pan heads metric phillips pan heads forself tappingscrews iso 7049 nominal diameter thread pitch ah k m g phillips driver size distance from underside of head to 1st major diam of thread head diameter head height recess diameter recess penetration max max min max min ref max min st 2 2 0 8 0 8 4 3 7 1 6 1 4 1 9 1 2.
The m3 and m4 nominal screw sizes have two drilled holes spaced 180 degrees apart.
Bolt diameter mm head wrench size mm ansi iso din.
Click on a metric hex head bolt type above or below to continue shopping metric hex head bolts.