22Nm
For bolts with a 8mm Thread Diameter: 22Nm. For bolts with a 10mm Thread Diameter: 25Nm.
How do you determine torque for tightening bolts?
The widely recognized engineering formula, T= K x D x P (to be explained later in this article), was used to provide the chart’s values, but it must be understood that every bolted joint is unique and the optimum tightening torque should be determined for each application by careful experimentation.
What is the torque for a M10 bolt?
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 tight should bolts be?
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.
How strong is a Class 10.9 bolt?
The different finishes are preferred in different application types. The High Tensile Grade 10.9 Screw is a special type that does not need nuts to fix it onto other components. This grade of bolts have tensile strength upto 1040 minimum and yield strength up to 940MPa minimum.
What is the hardness of a 10.9 bolt?
ISO 4162 Hexagon Flange Bolts
| Property Class | 10.9 | 12.9 |
|---|---|---|
| Hardness (HRC) | 32-39 | 39-44 |
| Tensile Strength (Mpa) | 1,040 min. | 1,220 min. |
| Yield Strength at 0.2% Offset (Mpa) | 940 min. | 1,100 min. |
| Elongation (%) | 9 min. | 8 min. |
What is the torque on a 9/16 bolt?
ASTM A449 / SAE Grade 5*
| Bolt Size | TPI | Tightening Torque (ft lbs) |
|---|---|---|
| Plain | ||
| 9⁄16 | 12 | 109 |
| 5⁄8 | 11 | 150 |
| 3⁄4 | 10 | 266 |
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 | 41.3 |
| M10 | 57.3 | 81.8 |
| M12 | 99.8 | 143 |
What is 10.9 grade bolt hardness?
The yield strength of the Grade 10.9 Metric Bolts is about 940MPa minimum and the tensile strength can range up to 1040MPa. The elongation rate is at 9%. The material hardness ranges from 316 to 375HB. There are different types such as square, hex, flat and other types of bolts.
What is SAE grade of bolt?
The SAE grade number, corresponding to the special markings, is an indication of the relative strength of the bolt. Grade 0 bolts (no markings) are usually made of a mild steel and are much weaker than a grade 8, usually made from a mild carbon steel alloy, though a grade 0 or 2 bolt is sufficient for most fasteners.
What is the bolt torque?
Torque is the application of a Force acting at a radial Distance and tending to cause rotation Torque is used to create tension in threaded fasteners When the nut and bolt are tightened the two plates are clamped together. The thread converts the applied Torque into tension in the bolt shank.
What is the torque of a screw?
Screw Conveyor Torque. Torque is defined as the twisting force exerted by the drive unit on the conveyor screw. Torque is transmitted through the drive shaft of the drive unit to the screw and converted to force to convey the bulk material.
