Dimensions for DIN931 Hex Head Bolt
| Diameter (d) | Pitch | Across Flats (s) |
|---|---|---|
| M8 | 1.25mm | 13mm |
| M10 | 1.5mm | 17mm |
| M12 | 1.75mm | 19mm |
| M14 | 2mm | 22mm |
What is a M12 bolt in standard?
This example illustrates how a coarse threaded screw may appear… M12 x 25 = 12 mm diameter, coarse thread is assumed (1.75 mm), 25 mm long. M12 is a matching coarse threaded nut.
What size socket is a M12 bolt?
Size Chart
| Bolt size | Size | Tolerance |
|---|---|---|
| 18mm | 18.05 | |
| 3/8″BSW | 18.08 | |
| M12 | 19mm | 19.06 |
| 1/2″UNF | 3/4″ | 19.11 |
How do you tell what size a bolt head is?
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 is M12 thread size?
ISO Metric Machine Screw Thread Dimensions
| Thread Size | Nominal Diameter (mm) | Thread Pitch (mm) |
|---|---|---|
| M8 | 8.0 | 1.25 |
| M10 | 10.0 | 1.50 |
| M12 | 12.0 | 1.75 |
| M14 | 14.0 | 2.00 |
What is M12 inches?
| Tap size | Basic major dia (mm) | Basic major dia (inch) |
|---|---|---|
| M10 x 1.25 | 10mm | .3937 |
| M12 x 1.75 | 12mm | .4724 |
| M12 x 1.25 | 12mm | .4724 |
| M14 x 2 | 14mm | .5512 |
What size head does a M16 bolt have?
Dimensions for DIN931 Hex Head Bolt
| Diameter (d) | Pitch | Head Depth (k) |
|---|---|---|
| M14 | 2mm | 8.8mm |
| M16 | 2mm | 10mm |
| M18 | 2.5mm | 11.5mm |
| M20 | 2.5mm | 12.5mm |
What is a M16 bolt?
Metric bolts are made fractionally under their stated size, for instance an M16 bolt will have a shank diameter of typically 15.97mm. 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.
How much torque does a M12 bolt need?
Typical maximum recommended thightening torques for metric bolts.
| Size (mm) | Typical Maximum Tightening Torque (Nm) | |
|---|---|---|
| Property Class | ||
| M8 | 28.8 | 32.3 |
| M10 | 57.3 | 64.1 |
| M12 | 99.8 | 112 |
How do I choose a bolt size?
How to Measure the Size of a Bolt
- Step 1: Measure the shank’s diameter. The shaft of the bolt is called the shank, and its diameter is the first dimension used to describe a bolt size.
- Step 2: Determine the thread pitch.
- Step 3: Measure the length of the shank.
- Step 6: Measure the length of the threaded portion of the bolt.
What are standard bolt sizes?
US Standard Thread Length for Bolts
| Bolt Diameter | Standard Thread Length (in.) * | |
|---|---|---|
| Bolts 6 inches and shorter | Bolts longer than 6 inches | |
| 1/4″ | 3/4″ | 1″ |
| 5/16″ | 7/8″ | 1-1/8″ |
| 3/8″ | 1″ | 1-1/4″ |
Is M12 the same as 12mm?
Yes. M12 is a 12mm diameter thread. You have to be sure the thread pitch measured in threads per millimeter (1.5 here) is the same as what u need.
Is M4 the same as 4mm?
At the threaded bit, an M4 would be 4mm across.
What is a M3 bolt?
The M3 machine screw has a thread diameter of 3 millimetres, the M stands for millimetres followed by the size – in this case 3 mm. We stock different lengths and head types such as countersunk or pan head depending on the fitting you need.
What size is a #12 bolt?
Table 1.
| Threads per Inch | Pitch (inches) | Pitch (mm) |
|---|---|---|
| 16 | 0.0625 | 1.588 |
| 14 | 0.0714 | 1.814 |
| 13 | 0.0769 | 1.954 |
| 12 | 0.0833 | 2.117 |
What’s the difference between M10 and M12?
The only difference between the M10 and M12 is the external appearance.
What is M12 in mm?
Standard metric 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 is M16 thread size?
Thread Geometry – Metric Coarse
| Thread | Major Diameter | Pitch Diameter |
|---|---|---|
| M12 | 12.0 | 10.863 |
| M14 | 14.0 | 12.701 |
| M16 | 16.0 | 14.701 |
| M18 | 18.0 | 16.376 |
Is M16 a 16mm?
M16 (16mm) Hex Nut – Steel (Pack of 10)
What is the difference between an ar15 and M16 bolt carrier?
The main difference between an AR-15 and an M16 lies in the lower receiver. M16 lower receivers have a third trigger pin hole for the auto sear, while AR-15 lower receivers do not. M16 lower receivers may also be milled to slightly different dimensions to accommodate the full auto fire control group.
How much does it cost to tighten a bolt?
In general, you should make the bolt tight enough so that the items it is holding together stay together, but not so tight that you damage the bolt’s threads. You should tighten bolts properly so that the bolt performs properly.
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