# What Is An M8 Bolt?

## 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..

## What are standard bolt threads?

The Unified Thread Standard (UTS) defines a standard thread form and series—along with allowances, tolerances, and designations—for screw threads commonly used in the United States and Canada. It is the main standard for bolts, nuts, and a wide variety of other threaded fasteners used in these countries.

## Is 5/16 The same as m8?

The size of a metric screw or bolt is specified as diameter, pitch and length, in millimeters (millimeters is abbreviated “mm”)….Table 3.MetricClosest InchM8-1.255/16-18 (Smaller)M10-1.53/8-16 (Smaller)M12-1.751/2-13 (Larger)M14-2.09/16-12 (Larger)16 more rows

## 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.

## What does m8 mean for screws?

The M before a number stands for metric. The next number is the diameter size. For example, M8 is a metric screw and has a diameter of 8mm.

## Are m10 and 3/8 the same?

Since 10 mm is bigger than 3/8″, the simple answer is, “NO”. But you CAN drill the hole out to either 25/64″ (for 3/8-24) or letter “X” (. 397″)( for 3/8-16), and tap for a Helicoil.

## What size screws are used to mount a TV?

For TVs 19 – 22 inches, the screw size is M4. For TVs 30 – 40 inches, the screw size is M6. For TVs 49 – 88 inches, the screw size is M8.

## Is m8 the same as 8mm?

All dimensions of the bolt (and nut) are a parameter of its basic diameter. The “M8” refers to an approximation of the major diameter of the thread of 8mm – actually slightly less, like 7.9, as the sharp edges are rounded off.

## How long is an m8 screw?

An M8 Bolt or screw refers to the bolts diameter in Millimeters. It is a metric measurement. We sell M8 bolts on my website. An M8 x 1.25 measures the diameter (M8) by the length (1.25).

## What is m8 bolt size?

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 is m8 in standard?

Thread Conversion TableMetric CoarseMetric FineUNFM6 x 1M6 x 0.751/4-28M8 x 1.25M8 x 15/16-24M10 x 1.5M10 x 1.253/8-24M12 x 1.75M12 x 1.251/2-2012 more rows

## What are the most common bolt sizes?

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.

## How do I know what size bolt I need?

First measure the diameter. Diameter is in either Inches ( not decimal ) or Millimeter. Second measure the pitch Pitch is threads / per unit. Inches are measured threads per inches.

## What does m10 bolt mean?

10 millimeterThose are metric screw dimensions. 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. To figure out which you have, you can measure the existing part with calipers and a thread gauge.

## What do the numbers mean on bolts?

In addition, most metric bolts are identified by a number stamped on the bolt head, such as 4.6, 5.8 or 10.9. The number has nothing to do with the size, but does indicate the relative strength of the bolt. The higher the number, the stronger the bolt. … A metric fastener could be designated M12 x 2, for example.