DIN and standard parts

Screws with internal driving feature

Screws with internal driving feature can be used in a wide range of applications.

Drive profiles

The most frequently used drive profiles are slot, cross recess, hexalobular (TORX®) and hexagon socket

These drive profiles are available in various designs and modifications. It is worth noting that cross recess drives are subdivided into the Phillips and Pozidriv drives.

Method and principle

Overview of screws with internal driving feature

Working principle

The form fit between the slot in the screw head and the drive tool transfers the installation torque to the screw enabling it to be screwed in.

Material

In addition to steel with different coating systems, available materials include stainless steel, brass and plastic.

Surfaces

Our products can be coated with different surface finishes – depending on requirements and application. We will be pleased to give you individual advice on the right coating system.

We offer the following surfaces as standard:

Plain
Zinc plated (industry standard)
Thick-layer passivated
Zinc-nickel
Zinc flake

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Types of screws with internal driving feature

Set screws
Set screws – also called grub screws – have a thread along the entire length of the screw. This means that they can be screwed completely into the receiving material and are designed to clamp a workpiece to the end of the threaded hole. Standard set screws should therefore not be subjected to tensile loads.

Standards

DIN 551 identical to ISO 4766

DIN 553 identical to ISO 7434

ISO 4026 similar to DIN 913

ISO 4027 similar to DIN 914

ISO 4028 similar to DIN 915

ISO 4029 identical to DIN 916

ISO 7435, similar to DIN 417

Set screws in our eShop
Tapping screws
The screw thread runs all the way from the tip to the head. Special types are available, such as a heavy-duty tip tapping screw, which penetrates the sheet to be joined so there is no need for prepunching. Double-thread types that take less time to screw in are also available.

Standards

DIN 7504 M, similar to ISO 15481

DIN 7504 O, similar to ISO 15482

DIN 7504 R, similar to ISO 15483

DIN 7981 C, similar to ISO 7049

DIN 7981 F, similar to ISO 7049

DIN 7982, similar to ISO 7050

DIN 7983, similar to ISO 7051

B 15481, similar to ISO 15481

B 15482, similar to ISO 15482

B 52030

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Pressboard screws
The core diameter is smaller than a traditional screw. This reduces the screw-in resistance while also increasing the thread overlap. The associated shear resistance to the wood material determines the pull-out strength of the screw. The countersunk head shape allows the screw to be flush with the material. These screws usually have a 40° flank angle (based on DIN 7998 ), are case-hardened, and have a slide-coated cone point.

Standards

B 7505

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Screws for plastic
Thermoplastic plastics are being used increasingly as materials. Screws for these components must achieve high-strength, long-lasting and economical connections, even under high loads.Self-tapping screws for plastic can be installed in a predrilled hole. The special thread geometry also enables thin-walled constructions. It also creates a self-locking effect which prevents the screw connections from working loose.

Standards

E 1452

E 5451

E 1413

E 1412

E 1411

E 5454

E 5151

B 52004

B 52005

B 52006

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Pan head screws and raised countersunk head screws
These screws are particularly suitable for use where the screw connections are visible. The rounded head shape minimises the risk of injury. Pan head screws are useful in connections where the mounting material must not be pressed in. Countersunk head screws, on the other hand, offer a finish that is flush with the workpiece. These screws can be used in a wide range of applications.

Standards

DIN 964, similar to ISO 2010

DIN 966, similar to ISO 7047

DIN 7985, similar to ISO 7045ISO 7380-1

More information in our eShop
Thread-rolling screws for metals
Thread-rolling screws for metals create their own thread during assembly. This requires pre-punching. Once the screw has been installed, it often creates a hole with a metric thread. This means that the thread-rolling screw can be exchanged for a metric DIN or ISO screw during servicing. As a result, these screws can be used efficiently for a wide variety of applications.

Standards

DIN 7500 C

DIN 7500 C (E)

DIN 7500 E

DIN 7500 M

DIN 7513

DIN 7516

EJOT ALtracs® Plus E5151

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Countersunk bolts
Countersunk bolts are flush with the mounting material, thanks to their funnel-shaped head. This reduces the risk of injury and enables additional components to be attached. Example application areas for countersunk screws include mechanical engineering, and device and vehicle construction, as well as wooden structures.

Standards

DIN 963, similar to ISO 2009

DIN 965, similar to ISO 7046

DIN 7991, similar to ISO 10642

ISO 10642, similar to DIN 7991

Countersunk bolts in our eShop
Self locking screws
Self locking screw components are used to prevent screw connections working loose or even coming apart completely due to loss of pre-tensioning force. Based on the way they work, the individual measures and the self-locking screws are divided into three groups: Setting locks, locking devices and anti-rotation locks. In addition, a chemical coating can be used to add an adhesive or clamping element.

Standards

B 50500 similar to ISO 7380

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Cylinder screws
Cylinder screws are particularly effective for preventing highly stressed connections from working loose in applications with restricted space. The head shape enables the screw to be countersunk in a bore hole so that it is flush with the receiving material. These screws are used in particular for machines and vehicles.

Standards

DIN 84, identical to ISO 1207

DIN 404

DIN 427, identical to ISO 2342

DIN 912, similar to ISO 4762

DIN 927

DIN 6912

DIN 7984

ISO 4762, similar to DIN 912

B 7984, similar to DIN 7984 and ISO 14580

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Hexagon socket button head screws with collar
Hexagon socket button head screws with collar have similar advantages and areas of application to pan head screws. The risk of loss of pre-tensioning force is also reduced due to the larger contact surface and lower surface pressure.

Standards

ISO 7380‑2

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Socket screw plugs
Socket screw plugs are used to seal open or unused threaded holes. This can be a permanent measure or it can be temporary, allowing the threaded hole to be used later. Holes on vehicles for oil drainage, for example, can be sealed using socket screw plugs.

Standards

DIN 906

DIN 908

Socket screw plugs in our eShop