M120 x 170.0mm Nord-Lock® Washer | Delta Protekt® Hardened Steel

Product code: NL-M120-170-DPT
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M120 x 170.0mm Nord-Lock® Washer | Delta Protekt® Hardened Steel
M120 x 170.0mm Nord-Lock® Washer | Delta Protekt® Hardened Steel
M120 x 170.0mm Nord-Lock® Washer | Delta Protekt® Hardened Steel
M120 x 170.0mm Nord-Lock® Washer | Delta Protekt® Hardened Steel
M120 x 170.0mm Nord-Lock® Washer | Delta Protekt® Hardened Steel
M120 x 170.0mm Nord-Lock® Washer | Delta Protekt® Hardened Steel
Quantity
Unit Price
(ex. VAT)
Unit Price
(inc. VAT)
1 - 99 £331.30 £397.56
100 - 499 £294.49 £353.39
500 - 999 £278.99 £334.79
1000 - 4999 £265.04 £318.05
5000 + £240.94 £289.13

£397.56 / each


Average production time 14 + days.
Vital Parts - Here to make bulk ordering easy.

Product Specification
Size M120
Internal Diameter 123.4mm
Outside Diameter 170.0mm
Thickness 9.50mm
Material Delta Protekt® Hardened Steel

Next Day or Standard Delivery available via DHL or Royal Mail.
Order by 4pm (UK) for same day dispatch, Monday to Thursday or 2pm Friday.

Larger Order?

Call our sales team on

01233 713581


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M120 x 170.0mm Nord-Lock® Washer | Delta Protekt® Hardened Steel | Vital Parts - NL-M120-170-DPT

The M120 x 170.0mm Nord-Lock® Washer | Delta Protekt® Hardened Steel combines accurate dimensions with proven wedge-locking geometry to create an effective mechanical locking washer. The M120 format incorporates a 123.4mm bore, a 170.0mm outer diameter and a total thickness of 9.50mm. Made from through-hardened steel with a Delta Protekt® finish, it is suited to robust steel assemblies and demanding industrial service. Its locking principle helps protect equipment uptime by reducing the likelihood of vibration-induced loosening.

What Are Nord-Lock® Washers?

Unlike conventional friction-based lock washers, Nord-Lock® washers use cam geometry to secure the bolted joint. The two washers are fitted cam-to-cam, leaving their serrated faces outward. When the fastener tries to rotate, the cams force an increase in bolt tension, which opposes further loosening.

Common Applications

  • Mining Equipment: Helps secure high-load connections exposed to shock, vibration and abrasive operating conditions.
  • Heavy Plant: Supports critical bolted joints on excavators, crushers and large production machinery.
  • Structural Machinery: Helps protect substantial steel assemblies and fabricated equipment from rotational loosening.
  • Large Drives: Useful on gearboxes, couplings and transmission equipment where clamp load must be maintained.

Technical Specifications:

  • Size: M120
  • Internal Diameter: 123.4mm
  • Outside Diameter: 170.0mm
  • Thickness: 9.50mm
  • Material: Delta Protekt® Hardened Steel

More Fastening Components

For related parts, browse our metric bolts and screws, fastening nuts and complete range of washers.

Need guidance with washer selection or a bulk requirement? Our team can help you specify a suitable option for your application on 01233 713581.

Please call for any enquiries!
Mon - Thurs 8.30 am - 5.30 pm
Fri 8.30 am - 3.30 pm
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