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Home » What Does M8 Mean On A Bolt? The 6 Latest Answer

What Does M8 Mean On A Bolt? The 6 Latest Answer

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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. But it’s common practice to drill clearance holes that are slightly larger to allow for misalignment.But, to answer your Q – an M8 bolt will fit in an 8mm hole.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 M8 Mean On A Bolt
What Does M8 Mean On A Bolt

Is an M8 bolt 8mm wide?

But, to answer your Q – an M8 bolt will fit in an 8mm hole.

What does M10 bolt mean?

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.


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Is M8 nut 8mm?

M8 nuts have a diameter of 8 mm.

What does M8 refer to?

M8-1.0 x 20. Here’s what the description means… M = Metric thread designation. 8 = Nominal diameter, in millimeters. 1.0 = Pitch (distance from thread to thread), in millimeters.

What size drill bit do I need for an M8 bolt?

M8 is a thread for a bolt where the thread is machined form a 8mm diameter bar. If you want to drill a hole in a metal component to tap a hole to match the thread then drill 6.8mm diameter. if you want to drill a hole in a wall and bond a M8 thread in place drill a 8mm hole.

What size is M8 bolt in MM?

Spanner and Allen Key Sizes
Size Spanner Allen Key
M8 13 mm 6 mm
M10 17 mm 8 mm
M12 19 mm 10 mm
M16 24 mm 14 mm

What size is M8 nut?

M8 (8mm) Thread Size.


See some more details on the topic what does m8 mean on a bolt here:


Understanding Metric Fasteners

For nuts, size will appear as diameter and pitch. There is an exception though—if pitch isn’t specified, the fastener is coarse threaded. Consider this size… M8 …

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Metric Nuts and Bolts | M8 Bold Size | Total Rail Solutions

This means that a 16mm bolt will fit through a 16mm hole but to allow for misalignment between parts it is common practice to drill bolt holes slightly larger.

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What size are m8 screws? – FindAnyAnswer.com

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. Is …

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What does M8 1.25 mean? – Wikipedikia Encyclopedia

M8 is the designation for a metric (M) sized bolt or screw that is 8mm (8) in diameter. This is roughly …

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What size is M8 bolt head?

DIN Standard 931 Hex Bolt Size Chart
Thread Size Thread Diameter Head Width
M6 1 4
M8 1.25 5.3
M10 1.5 6.4
M12 1.75 7.5

Which is bigger M8 or 5 16?

8mm = 5/16 inch. 9mm = almost 3/8 inch. 15mm = almost 19/32 inch. 16mm = 5/8 inch.

What size is 8mm bolt?

Metric Shoulder Bolt Dimensions
Shoulder Diameter (A) Thread (C) Head Diameter (E)
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 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.


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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 does 8.8 mean on a bolt?

So, in English, a Property Class 8.8 bolt is a bolt with a nominal tensile strength of 800 MPa and a nominal yield strength that is 80% of that nominal tensile strength, so 640 MPa.

How do I know if my nut is metric or standard?

Metric fasteners are measured by length and pitch, or the distance between threads. So the systems are opposite in a way: The higher the TPI in a standard bolt, the finer the threads because there’s more squeezed into a set space. The greater the pitch on metric fasteners, the more distance between threads.

What size hole do I drill for an M8 Thunderbolt?

Hi Mark, you need to use a small pilot drill (4 – 5mm] first then 12mm dia. for the M8 expansion bolts.

How much bigger should a hole be than a bolt?

Select a drill bit 1/32 inch larger than the bolt diameter for a tight fit hole or a drill bit 1/16 inch greater than the bolt diameter for a loose fitting hole.

What socket is M8 bolt?

FLAT HEAD SOCKET CAP SCREW – METRIC
Size Head Diameter Hexagon Socket Size
M4-0.7 8.96 2.50
M5-0.8 11.20 3.00
M6-1.0 13.44 4.00
M8-1.25 17.92 5.00

How can you tell if a bolt is metric?

Metric fasteners are specified with a thread pitch instead of a thread count. The thread pitch is the distance between threads expressed in millimetres (measured along the length of the fastener). For example a thread pitch of 1.5 means that the distance between one thread and the next is 1.5mm.

Is M8 a 10mm?

M8 (8mm) Thread Size (T) 5.4mm Head Length (H) DIN 933 Manufacturing Standard. 10mm Length (L)

How do you determine bolt nut size?

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 size bolt is 8mm?

There is an M sized bolt or screw that is 8mm in diameter. It is roughly the same as a 5/16 bolt or screw.


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What are the dimensions of an M8 bolt?

Standard Thread Length for Bolts | Metric
Bolt Diameter 125mm and Shorter Longer Than 125mm
M6 18 24
M7 20 26
M8 22 28
M10 26 32

Is M8 a 10mm?

M8 (8mm) Thread Size (T) 5.4mm Head Length (H) DIN 933 Manufacturing Standard. 10mm Length (L)

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