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Screw seal, self-centring
Screw seal, self-centring - 1
Screw seal, self-centring - 2

For detailed information, other images and documents, please select individual articles from the following table.

Screw seal, self-centring


  • Material: Steel
  • Shore A hardness: 70 +/- 5
  • Surface: Zinc plated
  • Min./max. temperature resistance: -35 to 120 °C

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Available in 12 versions

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You can refine your search by selecting different attributes

Art.-no. Suitable for screw Internal diameter Outer diameter Thickness Quantity PU
M4 4 mm 8 mm 1 mm
5 pcs
M18 18 mm 27 mm 2 mm
1 pcs
M5 5 mm 9 mm 1 mm
5 pcs
M20 20 mm 30 mm 2 mm
1 pcs
M8 8 mm 14 mm 1 mm
5 pcs
M14 14 mm 22 mm 1.5 mm
5 pcs
M16 16 mm 24 mm 1.5 mm
5 pcs
M6 6 mm 10 mm 1 mm
5 pcs
M12 12 mm 19 mm 1.5 mm
5 pcs
M24 24 mm 36 mm 2 mm
1 pcs
M10 10 mm 17 mm 1.5 mm
5 pcs
M22 22 mm 32 mm 2 mm
1 pcs

Packaging unit

The packaging unit defines the number of articles in one packaging. In the catalog segment you can choose from different packaging units if a pop-up menu is displayed.

Just leave the field empty if you don't know the packaging unit when directly entering the article number in the shopping basket or when importing with Easy-/VarioScan. The packaging unit will be determined automatically.

Structure of our article number

The article number is made up of the following: VVVVAAABBB
VVVV = 4 digits for prefix number (please note that the first digit is currently always 0)
AAA = 3 digits for dimension part 1
BBB = 3 digits for dimension part 2

Example article number structures:
Example 1: Screw with dimensions of 4x10 mm:
00574 10 (2 spaces between the 4 and the 10)

Example 2: Screw with dimensions of 10x20 mm:
005710 20 (1 space between the 10 and the 20)

Example 3: Flat washer with an internal diameter of 6 mm:

Information on price display

Price per packaging unit (PU):
The displayed price is always in line with the displayed packaging, if the PU is 250 the price for 250 units, if the PU is 300 the price for 300 units.

Price with price key representation (PSL):
The price always applies to a quantity ruled through the price key:
Price for 1 unit
Price for 100 units
Price for 1000 units


The quantity shows the number of pieces or units of measure contained in the order or delivery for the respective article.
In contrast to sales packaging and secondary packaging, the disposal costs for chemical-technical products are shown separately. The breakdown of the individual costs can be found on the relevant products and also in the shopping cart, as well as in our General Terms and Conditions (GTC).
Art.-no. Cust. Mat. No.

Hazardous Material

Product information

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Technical information

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Prices for customers after login

  • Galvanised steel, blue passivated (A2K)

  • Steel washer with moulded-on rubber sealing lip; for sealing bolt heads (primarily used with metric hexagon bolts in accordance with German DIN standard) and flange connections.

  • For high pressure, vacuum and broad temperature ranges.

  • Optimum sealing effect due to precisely defined lip formation.

  • No pressing out, even under extreme pressure conditions thanks to metal-metal contact.

  • Minimal tightening torque

  • No retightening of installed seal

  • Replaces other previously used seals

  • Can be used several times

  • Quick, easy and reliable installation.

  • Overhead installation possible

  • No special machining of metal surface required.

  • Temperature resistant from –35°C to +120°C

  • Hardness of rubber seal: 65–75 Shore