The following table chart defines standard metric external thread size m1 6 to m18 per.
Metric machine screws size chart.
If all else fails you may want to use our drill size conversion table or our tap drill size calculator.
The chart below shows metric bolt conversions and din numbers for fasteners.
Do not use these values for standard metric internal thread design.
Screws bolts threaded rods nuts.
M3 0 5 m4 0 7 m5 0 8 m6 1 m7 1 m8 1 m8 1 25 m10 1 m10 1 25 m10 1 5 m12 1 25 m12.
These thread sizes and classes represent bolts and screws as well as other standard external threads.
Decimal nearest fractional 0.
Make sure that you get the right sized screw.
All units in mm.
Metric machine screws tap drills chart this table is the chart for publication of information of metric machine screws along with tap and clearance drill information.
Size nominal thread diameter.
These are the m profile limiting dimensionings.
Sizing the right screw can be complicated unless you are familiar with the various screw sizings that are quoted on the packaging often both in imperial and metric.
Metric screw thread chart metric tap size tap drill inches clearance drill inches m1 6 x 0 35 55 0 052 50 0 070 m1 8 x 0 35 53 0 057 48 0 0 76 m2 x 0 4 52 0 063 45 0 082 m3 x 0 5 39 0 0995 1 8 0 125 m3 5 x 0 6 32 0 116 28 0 140 m4 x 0 7 29 0 136 19 0 166 m4 5 x 0 75 25 0 1495 14 0 182.
Metric bolt conversion data for industrial bolts rods machine screws and small diameter fasteners includes metric to standard bolt conversions.
Once you have selected one of our american standard parts you just need to add your metric requirement in the rfq.
Asm makes it easy to order metric hardware including metric screws spacers and standoffs.
How to order metric parts.
Therefore pan head screws are measured from under the head and flat head screws are measured overall.
Length length is measured from where the surface is assumed to be to the end of the screw.