For standard bolts in the range of m5 m12 we offer our own pro bolt measuring gauge.
M5 allen bolt size chart.
Shop high quality hex bolts from ita fasteners at the reasonable price.
All dimensions are given in millimeters.
This chart contains information on number metric and fractional number socket head cap screws along with tap drill information.
For precision measuring we would recommend the use of digital vernier calipers and a thread gauge to measure thread pitch.
If all else fails you may want to use our drill size conversion table or our tap drill size calculator the information available from our sources is usually sufficient for all computer related drill or screw requirements world wide.
There is an exception though if pitch isn t specified the fastener is coarse threaded.
Hex bolt head dimensions.
Where l is the total bolt length and d nom is the nominal bolt diameter.
Consider this size m8 1 0 x 20.
Non preferred threads according to standard.
M2 3 m2 6 m3 m3 5 m4 m4 5 m5 m5 5 m6 m7 m8 m9 m10 m11 m12 m14 m16 m18 m20 m22 m24.
Here is a general guide fo the most common bolt sizes.
All you need to know about bolts ideal bolt measuring tools.
There is a lot variability in what size bolts manufacturers use use for their parts.
The axis of the head shall be located at a true position relative to the axis of the screw shank within a tolerance zone having a diameter equivalent to 6 of the specified maximum head diameter or the specified maximum width across flats of hex and hex flange heads regardless of feature size.
0 35 mm 0 4 mm 0 45 mm 0 5 mm 0 6 mm 0 7 mm 0 75 mm 0 8 mm 0 9 mm 1 mm 1 25 mm 1 5 mm 1 75 mm 2 5 mm 3 mm 9 1 2 4 7 16 0000000.
Available in a range of sizes from m2 to m42 and din 933.
Socket flat socket button socket cap set screw 1 6mm.
I m sure there are some odd balls out there but generally speaking bicycles and bicycle parts use bolts with these thread pitches.
All tolerances are plus and minus.
The following table of hex bolt head dimensions was adapted from asme b18 6 3 table 29 dimensions of plain unslotted and slotted regular and large hex head screws this table is used for smaller size hardware.
Here s what the description means.
Metric hex nut dimensions calculator.
Screw diameter drive size.
For nuts size will appear as diameter and pitch.