# What sizes do nuts and bolts come in?

## What sizes do nuts and bolts come in?

With metric threads tapping drill size is easy to work out because it is the bolt diameter minus the thread pitch so, for example, a standard pitch M16 bolt has a pitch of 2.0mm so the tapping drill size is 16 – 2 = 14mm….Spanner and Allen Key Sizes.

Size Spanner Allen Key
M20 30 mm 17 mm
M24 36 mm 19 mm
M30 46 mm

### What are the bolt sizes available?

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. Both square and hex heads are available.

#### How are machine bolts measured?

Measuring Bolts and Screws Length is measured from the point at which the head sits flat with the surface, to the tip of the threads. Hex, pan, truss, button, socket cap, and round head screws are measured from right under the head to the end of the threads.

How do I know if I have a m6 or M8 bolt?

The defined diameter of metric bolts is actually slightly larger than the actual diameter of the bolt shaft. So an M8 bolt would have a shaft diameter that’s slightly under 8mm which means that the bolt should fit through an 8mm hole.

What size is M10 in MM?

M10-1.0 x 20 M = This designates the fastener is a metric size. 10 = The nominal diameter in millimeters. 1.0 = The thread pitch, or distance between threads, in millimeters. 20 = The fastener’s length, in millimeters.

## What does M10 mean?

M10 means a 10 millimeter outer diameter for the bolt or whatever piece it is; M12 means 12 millimeters. The part after the ‘x’ is the pitch — how many mm a thread is wide.

### What size is M10 in inches?

Tap size Basic major dia (mm) Basic major dia (inch)
M8 x 1 8mm .3150
M10 x 1.5 10mm .3937
M10 x 1.25 10mm .3937
M12 x 1.75 12mm .4724

#### What size is M6 bolt in MM?

6mm
M6 threads are 6mm metric screws. The standard metric rack screw is called M6 x 1. The ‘M’ means it’s metric.

Is an M10 bolt 10mm diameter?

If the size is M10 x 25, that would mean that the diameter is 10 mm. Since there is no thread pitch listed, the fastener is assumed to have a coarse thread. The 25 indicated a length of 25 mm. A matching nut would be labeled M10, which also doesn’t require a thread pitch since it’s a course thread fastener.

What are the dimensions of a machine bolt?

Machine bolt dimensions are defined in both metric and imperials sizes with unified national coarse pitch (UNC), fine pitch (UNF), fixed pitch (UN) and iso metric thread profile. These are produced across all material categories and astm specifications.

## What are the different types of machine bolts?

Machine bolts can be divided into hex bolts and square bolts based on the head type. Metric bolts are referenced using “M” sizes, such as the M8 bolt size. The size of a metric bolt is specified using pitch, diameter, and length in millimeters.

### What is a machine bolt used for?

Machine Bolts. Machine bolts are used to fasten wood to wood, wood to metal and metal to metal. Similar to a hex cap screw, a machine bolt will differ in these four ways: its point will not be chamfered or rounded; it will be available in larger sizes (diameters); it will not have an underhead washer bearing surface;

#### What is the difference between bolts and machine screws?

Machine screws can be designated as bolts if the primary tightening of the fastened joint is accomplished by turning the head of the screw. 4. Generally speaking, if it’s got screw threads and hex head, it’s a bolt. If it’s got a slotted head, either Phillips or Flat, it’s a screw.