about 8 mm
.
Similarly one may ask, what size socket fits an m8 bolt?
Size Chart
| Bolt size | Size | Tolerance |
| 5/16"UNF | 1/2" | 13.00 |
| M8 | 13mm | 13.30 |
| 1/4"BSW | 13.64 |
| 14mm | 14.35 |
Secondly, what does m8 1.25 bolt mean? For metric fasteners, you will see a M8 x 1.25 or an M8 x 1. For thread pitch, the distance between two points is the second number meaning the higher the number the fewer threads there are. This means the M8 x 1.25 is the coarse threading and the M8 x 1 is the fine thread.
Herein, what is the diameter of a m6 bolt?
6 millimetres
What size is an m8 bolt in inches?
| Tap size | Basic major dia (mm) | Basic major dia (inch) |
| M6 x 1 | 6mm | .2362 |
| M8 x 1.25 | 8mm | .3150 |
| M8 x 1 | 8mm | .3150 |
| M10 x 1.5 | 10mm | .3937 |
Related Question Answers
What size Bolt uses a 10mm socket?
A standard 6mm hex cap screw should have a 10mm head.What size hole do I need for an m12 bolt?
Metric Threads
| Thread | Drill size for tapping standard metric threads | Clearance hole |
| M10 | 8.5 | 11 |
| M12 | 10.2 | 13.5 |
| M14 | 12 | 15.5 |
| M16 | 14 | 17.5 |
What size are m8 nuts?
The standard size M8 hex nut is 13 mm across opposite faces, the vast majority you will encounter will be this size although you do occasionally see other sizes especially in mass produced products, Ford seem to have a thing about using non-standard sizes and of course not all nuts are hex nuts.What size nut fits a 15mm socket?
The standard wrenches needed are: 11,13,15,17,19,22,24,27,30,32,36mm. I believe that the bold that goes with the 15mm wrench is normally an M8. M8s usually use 12 or 13mm heads.What size nut fits a 13mm socket?
The nut takes a 13mm spanner, (which suggests M8), the length of the whole thing is approx. 25mm, and the threaded bit is approx. 21mm. The outside diameter of the threads is approx.What size wrench do I need?
Multiply the first number which is the bolt size in inches or millimeters, by 1.5 using a pocket calculator, if necessary. For example, for the numbers in Step 1, 1/2 x 1.5 = . 75 or 3/4, which is the wrench size needed for this standard-sized bolt.What size bolt has a 7 8 head?
Hex Bolt Head Size Chart
| Diameter | Head Size |
| 1/4" | 7/16" |
| 5/16" | 1/2" |
| 3/8" | 9/16" |
| 7/16" | 5/8" |
Is a #8 or #10 screw bigger?
Machine screws are often found in sizes of: 0, 1, 2, 3, 4, 5, 6, 8, 10, 12, 14—the larger the number, the larger the screw.Is 5/16 The same as m8?
8 mm and 5/16" is so close in dimension, would the maker bother to make one a hair larger in size (or one a hair smaller)? The 5/16" will be sloppier. it is equivalent to 8.255 mm. The 5/16" will be sloppier. How much weight can an m8 bolt hold?
From the table at right, for a strength class of 10.9 and a maximum allowable load of 200 kgf, the suitable bolt is a 318[kgf]M8. Therefore we select a 10 mm MSB10 with a M8 thread section. When the bolt is subjected to shear load, also use a dowel pin.What size is a m8 bolt head?
M8 x 75mm Hexagon Head Bolt.Is m12 the same as 12mm?
Yes. M12 is a 12mm diameter thread. You have to be sure the thread pitch measured in threads per millimeter (1.5 here) is the same as what u need.What do bolt size numbers mean?
The number following the hyphen is the number of threads per inch, that is, the number of threads on the shaft itself, per inch of shaft length. 1/4-20: One quarter inch shaft diameter, 20 threads per inch. 3/4-16: Three quarter inch shaft diameter, 16 threads per inch.How are bolt sizes measured?
To measure the diameter of screws and bolts, you measure the distance from the outer thread on one side to the outer thread on the other side. This is called the major diameter and will usually be the proper size of the bolt.What does m10x1 5 mean?
Inch & Metric Thread Standards Metric thread callouts are fundamentally different because the thread pitch (distance between each thread, in mm) is specified instead of threads per inch or per mm. For example, an M10x1. 5 (coarse) thread has a 1.5mm pitch, while an M10x1. 25 (fine) thread has a 1.25mm pitch.What size is m12?
Measure them. The M8 will measure about 8 mm in diameter, more likely, just a touch undersize, (. 31496") The M10, about 10 mm in diameter, (. 3937") and the M12 about 12 mm in diameter, (.What is major diameter and minor diameter?
Major Diameter is the largest diameter of a screw thread. Whereas, Minor Diameter is the smallest diameter of a screw thread.What is m4 size?
Metric threads, M4, M5, M6, M8, M10 & M12 are commonly used. M4, for example, means the "standard" M4 thread size: for a bolt, the outside of the thread would be 4mm in diameter, and the spacing between threads (the pitch) would be 0.70mm.What is the major diameter of a bolt?
The major diameter of a thread is the diameter of the imaginary co-axial cylinder that just touches the crest of an external thread or the root of an internal thread. The minor diameter is the diameter of an imaginary cylinder that just touches the roots of an external thread and (or) the crests of an internal thread. 
