# What Size Is M8 Bolts?

## What size socket fits an m8 bolt?

Size ChartBolt sizeSizeToleranceM813mm13.301/4″BSW13.6414mm14.353/8″UNF9/16″14.6337 more rows.

## What size bolt takes a 15mm wrench?

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. Your list of wrenches may be true for whatever you work on, but the reality is that you need most sizes.

## How can you tell if a bolt is metric or standard?

Telling the difference between a metric and imperial bolt is easy. If the bolt has lines on the head its standard or imperial. If the bolt has numbers on the head then its metric. These markings indicate how strong the bolt is they call this tensile strength.

## How do you size a bolt?

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 do bolt sizes mean?

The size of a metric screw or bolt is specified as diameter, pitch and length, in millimeters (millimeters is abbreviated “mm”). For nuts, size will appear as diameter and pitch. … In the example above, a pitch of 1.0 means that from one thread to the next thread, the distance is 1.0 millimeter.

## What does m8 mean on a bolt?

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, (. 4724″). The “M” designates the bolt is Metric and the number after the M indicates the size.

## What size is m8?

Tap sizeBasic major dia (mm)Basic major dia (inch)M6 x 16mm.2362M8 x 1.258mm.3150M8 x 18mm.3150M10 x 1.510mm.393724 more rows

## What are standard bolt threads?

US Threads Per Inch TableBolt SizeThreads Per Inch (TPI)Coarse Thread UNCFine Thread UNF1-1/4″7121-1/2″612* 12tpi is the UNF standard however 14tpi is far more common in actual use.24 more rows

## What size is a 6mm bolt?

Metric Shoulder Bolt DimensionsShoulder Diameter (A)Thread (C)Thread Length (D)6mm5mm x 0.89.75mm8mm6mm x 1.011.25mm10mm8mm x 1.2513.25mm12mm10mm x 1.516.4mm3 more rows

## What is the most common bolt size?

If you can go imperial, 1/4-20 is going to be the most common fastener. M4 – M5 – M8 – M10 – M12 – (M14) – M16. Those are the most commonly used in my opinion.

## What size is a 10 24 bolt?

The first definition is about the size of the screw. For a 10-24 screw this is 0.19 of an inch as the major diameter and 0.1379 as the minor diameter.

## 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.

## Is a m8 bolt 8mm?

M8 is the designation for a metric (M) sized bolt or screw that is 8mm (8) in diameter. This is roughly equivalent to a 5/16 bolt or screw.

## What are standard bolt sizes?

Typically, machine bolt sizes range from 1/4″ to 1 1/4″ for square heads and 3/8″ to 1 3/4″ in diameter for hex heads, and lengths span from about 3/4″ to 18″ for square and 6 1/2″ to 24″ for hex heads. Measure length from under the head to the threaded end of the bolt.