What is the maximum tensile force that an M12 ordinary bolt can withstand?

M12 ordinary bolts (grade) can work normally when subjected to a tensile force of less than 26100N (or a weight of less than 2660kg).

It is calculated according to the material and effective diameter (area).

For example, M12 bolt, material Q235, effective diameter is hypothetical) then the maximum bearing pressure of the bolt is 210

GB T

Guaranteed load of bolts:

The M12 bolt (grade) guarantees a load of 26100N (2660kg), which means that the M12 ordinary bolt (grade) can work normally under the condition of bearing a tensile force of less than 26100N (or a weight of less than 2660kg).

Ordinary bolts. We generally refer to bolts with low strength grade requirements, and generally ordinary bolts with grade requirements. The hardness and strength of the bolt is not very high, the general ordinary bolt material is produced with ordinary screws and wires, and the hardness and strength, tensile force and torque of the ordinary bolt material will not be very high, and it will not be very high.

High-strength bolts, generally refers to high-strength bolts, its own screw material, bolt material, and bolt material are better, the hardness is relatively high, and after manufacturing, the bolt will be hardened. Make the bolt reach the grade strength requirements of high-strength bolts.

Resources. Know, know.

It is calculated according to the material and effective diameter (area).

For example, M12 bolt, material Q235, effective diameter is hypothetical) then the maximum bearing pressure of the bolt is 210

Check the national standard GB T

The guaranteed load of the bolt.

The M12 bolt (grade) guarantees a load of 26100N (2660kg), which means that the M12 ordinary bolt (grade) can work normally under the condition of bearing a tensile force of less than 26100N (or a weight of less than 2660kg).

The size chart is as follows:

Calculation of bolt tensile strength.

Bearing capacity Strength x Area;

The bolt is threaded, and the cross-sectional area of the M24 bolt is not a circular area of 24 diameters, but 353 square millimeters, which is called the effective area.

The tensile strength of ordinary bolt grade C (and grade) is 170n square millimeters.

Then the bearing capacity is: 170x353 60010N.

The maximum tensile force of the bolt grade of the M8 is about 26kN or 34Nm.

The maximum tensile force is about 37 kN or 48 nm.

The maximum tensile force of the stage is about 43 kN or 57 Nm.

The maximum tensile force of the M10 bolt stage is about 43 kN or 70 Nm.

The maximum tensile force is about 61 kn or 98 nm.

The maximum tensile force is about 71 kn or 114 nm.

The maximum tensile force of the M12 bolt grade is approximately 58 kN or 110 Nm.

The maximum tensile force of the stage is about 83 kN or 120 Nm.

The maximum tensile force of the stage is about 97 kn or 185 nm.

The above is an approximate value, because there are many factors to be considered, such as the buried ridge, the diameter of the bolt, the pitch of the teeth, etc.

Precautions. Torque is a special moment that causes an object to turn. Engine torque is the torque that the engine outputs from the crankshaft end.

Under the condition of fixed power, it is inversely proportional to the engine speed, the faster the speed, the smaller the torque, and vice versa, it reflects the load capacity of the car within a certain range. The external torque is called torque or external force moment, and the internal permeation is called internal force moment or torque.

Torque (also known as torque) is a special moment in physics, which is equal to the product of force and liquid digging arm, and the SI unit is Nm n·m, and you can also see units of torque such as kg·m and lb-ft. Since g=mg, when g=, the gravitational force of 1kg is, so 1kg·m = 1n·s2, and the pound lb-ft is the imperial unit of torque, 1lb=; 1ft=, you can calculate 1lb-ft=.

The above content reference: Encyclopedia - Torque.

It is related to the mechanical strength of the screw material and the accuracy level of the screw. The tensile force that a single screw can withstand should be more than 100kg.

M is a metric thread, 6 is the large diameter of the thread, 16 is the length of the bolt (excluding the nut if it is a countersunk head), the hole of M6 must be the bolt of M6, there are many types of bolts, hexagonal, hexagon, etc., as for the length according to the assembly needs. Traces.

The length of M6 is also a lot of specifications, etc., M6 screw is the outer diameter of the thread 6mm, M is the tooth symbol of the ordinary thread, M is the outer diameter of the thread is a few mm.

Metric ISO threads.

Metric ISO threads are represented by the letter M, followed by the value of the nominal diameter "D" (DMAJ in the diagram above) and the spacing "P", both in millimeters and separated by a multiplier sign " " e.g. M8.

If the spacing is the "thick" spacing commonly used as listed in ISO 261 or ISO 262, it can be omitted (e.g. M8). For example, if only M20 is given, then it is a coarse thread.

The external thread is indicated by the lowercase letter "G" or "H". The internal thread is indicated by a capital letter "G" or "H". If the thread position is differentiated, the spiral line is located on the outer surface of the cylinder or cone, and the spiral is located on the surface of the cylindrical hole or conical hole, and the spiral is located on the surface of the cylindrical hole or conical hole.

If it is classified according to the direction of rotation of the spiral, the right thread is the right thread with the clockwise rotation and the forward spiral is the left thread according to the counterclockwise direction.

Kg; Calculate the cross-sectional area according to the bottom diameter of the thread (7 * 7 * square millimeters), multiplied by the yield limit of the material (the generally commonly used materials are Q235 carbon steel, 235 trillion is equivalent to kilograms square millimeters,) Its bearing capacity = 154 * kilograms.

Extended Resources:

A type of fastener consisting of a head and a screw (a cylinder with an external thread) that is used in conjunction with a nut to fasten two parts with through holes.

Because the bolt is also a kind of railway accessories, railway accessories are a part of the railway line, and the tracks referred to here include rails, sleepers, connecting parts, track beds, anti-climbing equipment, rail braces and turnouts.

As a monolithic engineering structure, the track is laid on the roadbed, plays a guiding role in the operation of the train, and directly bears the huge pressure of the rolling stock and its load. Under the power of train operation, its various components must have sufficient strength and stability to ensure that the train runs safely, smoothly and uninterruptedly in accordance with the specified maximum speed.

Bolts: mechanical parts, cylindrical threaded fasteners with nuts. A type of fastener consisting of a head and a screw (a cylinder with an external thread) that is used in conjunction with a nut to fasten two parts with through holes.

This form of connection is called bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection.

There are hexagonal heads, round heads, square heads, sunk heads, etc. Among them, hexagonal heads are the most commonly used. Generally, the countersunk is used in the place where the surface is required to be smooth and without protrusions after connection, because the countersunk can be screwed into the part.

Round heads can also be screwed into parts. The tightening force of the square head can be larger, but the size is large.

In addition, in order to meet the needs of locking after installation, there are holes in the head and holes in the rod, which can make the bolts not loosen when they are vibrate.

Some bolts have no threaded light rods to make thin, called thin waist bolts. This bolt facilitates the connection of the subject to variable forces.

There are special high-strength bolts on the steel structure, the head will be larger, and the size will also change.

In addition, there are special uses: T-slot bolts, most used on machine tool fixtures, special shapes, both sides of the head to be cut off. Anchor bolts, which are used to connect and fix the machine to the ground, come in many shapes. U-bolts, as mentioned above. Wait a minute.

There are also special studs for welding, one end has a thread and the other end is not, which can be welded on the parts, and the other side of the state directly screws the nut.

Summary. Hello, the maximum allowable tensile force of an M12 expansion bolt is 12kN, and the maximum tensile force that the chemical anchor of M16 can withstand is 12kN, and it should be noted that there is no standard M14 expansion bolt.

For details, please refer to the standard JB QT 4753-2006 Table 2 (expansion bolts), JB QT 5757-2006 Table 5 (chemical bolts).

How much force can an M14*120 expansion bolt and an M16 chemical anchor withstand?

Hello, the maximum allowable tensile force of an M12 expansion bolt is that the maximum tensile force that the M16 chemical anchor can withstand is 12KN force, and it should be pointed out that there is no standard M14 expansion screw with absolute bolt. For details, please refer to the standard JB QT 4753-2006 Table 2 (expansion bolts), JB QT 5757-2006 Table 5 (chemical bolts).