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Wedge lock washer W.TEC series Narrow shape
Wedge lock washer W.TEC series Narrow shape  - 1
Wedge lock washer W.TEC series Narrow shape  - 2

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

Wedge lock washer W.TEC series Narrow shape

Wedge lock washer - effectively secures laterally loaded, vibrating screw connections and screw connections subject to oscillations against self-turning

  • Material: Steel
  • Vickers hardness, HV: 485 HV
  • Surface: Flake zinc silver
  • Corrosion protection period: 600 h
  • RoHS-compliant: Yes
  • Design: Narrow
  • Locking function: Locking against self-loosening by mechanical interlocking

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You can refine your search by selecting different attributes

Art.-no. Internal diameter Suitable for screw thread Suitable for thread (imperial) Outer diameter Quantity PU
6.5 mm M6 10.8 mm
25 pcs
10.7 mm M10 16.6 mm
25 pcs
8.7 mm M8 5/16 inch 13.5 mm
25 pcs
19.5 mm M18 29 mm
25 pcs
17 mm M16 5/8 inch 25.4 mm
25 pcs
21.4 mm M20 30.7 mm
25 pcs
34.4 mm M33 1 1/4 inch 48.5 mm
25 pcs
25.3 mm M24 39 mm
25 pcs
31.4 mm M30 1 1/8 inch 47 mm
25 pcs
13 mm M12 19.5 mm
25 pcs
15.2 mm M14 9/16 inch 23 mm
25 pcs

Packaging unit

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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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Lock washer in line with DIN 25201 to prevent loosening in laterally loaded connections, vibrating screw connections and screw connections subject to oscillations.

Corrosion resistance:

600 h base metal corrosion in line with DIN EN ISO 9227-NSS (DIN 50021-SS) — in comparison: 96 h yellow galvanised (A2C)


The wedge surface slope between the two lock washers ensures highly secure locking. The screw connection is locked by pre-tension instead of by friction.


  • Easy to assemble and disassemble (wedge lock washers are already glued in pairs)

  • Tested system for screw retainer (locking elements that prevent unscrewing), at high as well as low tension

  • Especially suited for dynamic loading – even when used with lubricants

  • Can be reused multiple times, without loss of quality

  • Gentle on surfaces

  • Can also be used with high-strength screws 8.8, 10.9 and 12.9 and the matching nuts

  • Available in stainless steel or steel (other materials available on request)

  • With narrow and wide contact surface

For the recommended tightening torques, please see the technical information in the DIN/ISO catalogue.