# Question: Is M6 bolt same as 6mm?

Contents

M6 refers to a metric 6 mm screw. The outside diameter of the threads is 6 mm. The standard metric rack screw is actually an M6 x 0.1 mm. The number 0.1 mm refers to 0.1 threads per millimeter.

## Is M6 same as 6mm?

M6 threads are 6mm metric screws. The standard metric rack screw is called M6 x 1. … You can identify an M6 screw by measuring the diameter with a ruler. It’ll be 6 mm, or slightly more than 7/32 inches (0.228″).

## Will a M6 bolt fit in a 6mm hole?

Since they are bolt-nut pairs, you may be able to substitute 6mm, but the 1-1/4″ length will still be essential.

## What is M6 bolt in MM?

Metric clearance and tapping drill hole sizes.

Size Clearance Hole mm Tapping Drill (std Pitch)
M5 5.5 4.2 mm
M6 6.5 5.0 mm
M8 9 6.75 mm
M10 11 8.5 mm

## What is M6 equal to?

Metric Coarse Metric Fine UNF
M6 x 1 M6 x 0.75 1/4-28
M8 x 1.25 M8 x 1 5/16-24
M10 x 1.5 M10 x 1.25 3/8-24
M12 x 1.75 M12 x 1.25 1/2-20
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## What size is a 6mm bolt?

Metric Shoulder Bolt Dimensions

6mm 5mm x 0.8 10mm
8mm 6mm x 1.0 13mm
10mm 8mm x 1.25 16mm
12mm 10mm x 1.5 18mm

## What size is M6 hole?

Hole size for general Metric threads

Nominal size Pitch Percentage of thread engagement hole diameter (mm)
M5.5 0.5 5.12
M6 1 5.24
0.75 5.43
0.5 5.62

M4 3.3 4.5
M5 4.2 5.5
M6 5 6.6
M8 6.8 9

## How strong is a M6 bolt?

■Bolt strength

With additional consideration for the fatigue strength, and based on the strength class of 12.9 in the table, we select an M6 screw with maximum allowable load of 213 kgf.

## What drill bit do I need for an M6 bolt?

Hi Russ, it is the diameter of the bolt that determines the drill size required, do you have M6, M8 or M10 expansion bolts? M6 = 12mm, M8 = 14mm and M10=16mm for normal substrates such as brick, block or concrete.

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

So, determining the screw size is important. It is easy to determine the screw size. First, measure the diameter with a Vernier caliper. Choose the closest reading screw size on a screw thread gauge.

## How do I know what size nut and bolt to get?

A typical rule of thumb . . . Use a bolt diameter that is 1.5 – 2.5 times (up to three times) the thickness of the thinner material you are bolting together. So, for 1/8″ material, a 1/4″ diameter is often a good bolt choice. For 1/4″ thick material, perhaps a 3/8″ or 1/2″ bolt.

## Which is bigger M5 or M6 bolts?

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.

Table 3.

Metric Closest Inch
M3.5-0.6 6-40 (Same)
M4-0.7 8-36 (Larger)
M5-0.8 10-32 (Smaller)
M6-1.0 1/4-28 (Larger)

## Are M6 and 1/4 interchangeable?

A normal M6 screw is a rattly fit in a 1/4 BSF full nut.

## Are M6 and 1/4 20 the same?

An M6 will thread a few turns into a 12-24 nut, but additional turns ruin the threads. Same with a 1/4″-20 and an M6. A metric/SAE screw gauge costs \$4. That’s a one-beer tool.