Introduction:

DIN 84 is a metric standard for slotted cheese head machine screws that has been widely used in various industries. These screws are known for their ease of use, durability, and reliable performance. In this blog, we will discuss the different aspects of DIN 84, including its history, design, dimensions, and applications.

History:

The DIN 84 standard was first published in 1936 by the German Institute for Standardization, which is also known as Deutsches Institut für Normung (DIN). The standard was created to ensure that machine screws produced in Germany were of a consistent quality and met certain performance requirements. Since then, the DIN 84 standard has been adopted by many countries around the world, and it has become one of the most widely used standards for slotted cheese head machine screws.

Design:

The slotted cheese head machine screw is one of the most common types of screws used in machinery and other industrial applications. The design of the DIN 84 screw is characterized by a cylindrical head with a flat top surface and a circular bearing surface, and a threaded shank that is partially or fully threaded. The slotted cheese head is designed to be easily tightened or loosened using a screwdriver. The head of the DIN 84 screw is also designed to provide a high bearing surface, which helps to distribute the load evenly over a larger area.

Dimensions:

The DIN 84 standard specifies the dimensions and tolerances for slotted cheese head machine screws in metric units. The standard covers a wide range of screw sizes, including M1.4, M1.6, M1.8, M2, M2.5, M3, M4, M5, M6, M8, M10, M12, M16, and M20. The standard specifies the length of the threaded portion of the screw, the length of the head, the diameter of the head, the diameter of the shank, and the pitch of the threads. The standard also specifies the material and surface finish requirements for these screws.

Applications:

DIN 84 machine screws are used in a variety of applications, including machinery, electronics, and automotive industries. These screws are known for their reliable performance and ease of use. They are often used in applications where a high degree of precision is required, such as in the assembly of electronic components or in the construction of machinery. DIN 84 machine screws are also commonly used in applications where the screws will be exposed to harsh environments, such as in marine or aerospace applications.

Advantages:

There are several advantages to using DIN 84 machine screws. First, they are easy to install and remove, which makes them ideal for applications where screws need to be frequently tightened or loosened. Second, they provide a high bearing surface, which helps to distribute the load evenly over a larger area. This can help to reduce the risk of damage to the materials being fastened together. Finally, DIN 84 machine screws are known for their durability and reliable performance, which makes them ideal for use in applications where a high degree of precision and reliability is required.

Disadvantages:

There are also some disadvantages to using DIN 84 machine screws. First, they can be difficult to tighten or loosen if the screwdriver slips out of the slot in the head. Second, they are not suitable for applications where a high degree of torque is required, as the head of the screw can be easily damaged if too much force is applied. Finally, the slotted cheese head design of these screws can make them vulnerable to dirt and debris, which can make them difficult to remove if they become stuck.

Here is a dimensional chart for DIN 84 slotted cheese head machine screws:

Diameter (d) Length (l) Head Diameter (dk) Head Height (k) Slot Width (s) Thread Pitch (P)
M1.4 2 - 20 mm 3.0 mm 1.4 mm 0.6 mm 0.3 mm
M1.6 2 - 20 mm 3.5 mm 1.6 mm 0.7 mm 0.35 mm
M1.8 2 - 20 mm 4.0 mm 1.8 mm 0.8 mm 0.35 mm
M2 3 - 25 mm 5.0 mm 2.0 mm 1.0 mm 0.4 mm
M2.5 3 - 30 mm 6.0 mm 2.5 mm 1.2 mm 0.45 mm
M3 4 - 35 mm 7.0 mm 3.0 mm 1.4 mm 0.5 mm
M4 6 - 50 mm 9.0 mm 4.0 mm 1.8 mm 0.7 mm
M5 8 - 60 mm 11.0 mm 5.0 mm 2.2 mm 0.8 mm
M6 10 - 80 mm 14.0 mm 6.0 mm 2.5 mm 1.0 mm
M8 16 - 100 mm 18.0 mm 8.0 mm 3.0 mm 1.25 mm
M10 20 - 120 mm 22.0 mm 10.0 mm 3.5 mm 1.5 mm
M12 30 - 140 mm 26.0 mm 12.0 mm 4.0 mm 1.75 mm
M16 40 - 200 mm 35.0 mm 16.0 mm 5.0 mm 2.0 mm
M20 60 - 240 mm 45.0 mm 20.0 mm 6.0 mm 2.5 mm

Note: The values provided in this chart are for reference purposes only. Actual dimensions may vary depending on the manufacturer and the specific product. It is always recommended to consult the DIN 84 standard for accurate and up-to-date information on screw dimensions and tolerances.

For your DIN 84 pan head screws requirement Click Here