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  4. Wedge locking washer Alloy C-276 washer (Nord-Lock Group)
Wedge locking washer Alloy C-276 washer-NL4ss-276
Wedge locking washer Alloy C-276 washer-Nord-Lock Group

Wedge locking washer Alloy C-276 washer
Nord-Lock Group

About This Product

■Summary

Nord-Lock washers, which feature a wedge locking mechanism, use axial force rather than friction to physically prevent bolt connections from loosening. Nord-Lock washers greatly reduce the risk of loss due to unexpected production stoppages, accidents, warranty claims, etc., contributing to improved production efficiency and reduced maintenance costs.

■Product structure

When the bolt is tightened, the serrations grip and secure the mating material. When a loosening force is applied, the cam angle α is larger than the screw lead angle β, so the washer becomes thicker and pulls up the bolt head, conversely increasing the axial force. Physically prevents rotational loosening by using the axial force itself.

■Advantages of using Nord-Lock washers

・Prevents bolts from loosening even in environments exposed to severe vibrations and fluctuating loads ・Material that can withstand corrosive, acidic, and high-temperature environments ・Lock function not affected by lubricating oil ・Accurate axial force due to clear and uniform friction - Wide range of metric and imperial sizes ・High corrosion resistance ・Reusable ・Customized size ・Improve operational reliability and reduce maintenance costs ・Reducing the risk of downtime and accidents

■Applications

Nord-Lock wedge locking washers use axial force instead of friction to secure bolt connections that are exposed to severe vibrations and fluctuating loads. Throughout their lifecycle, Nord-Lock washers improve operational reliability and reduce maintenance costs, significantly reducing the risk of production stoppages, accidents, and warranty claims. Nord-Lock washers are used everywhere from the deep sea to outer space and bridges, where safety is a must.

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    Wedge locking washer Alloy C-276 washer

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1 Models of Wedge locking washer Alloy C-276 washer

Image Part Number Price (excluding tax) Approximate weight per 100 pairs (kg) Size range Bolt size (inch) Bolt size (meter) Laser mark marking material name Inner diameter Φi (mm) Thickness T (mm) Outer diameter Φo (mm) Compatible temperature range Quantity in small box (sets) Material standards Hardening Surface treatment Purpose Hardness Corrosion resistance
Wedge locking washer Alloy C-276 washer-Part Number-NL4ss-276

NL4ss-276

Available upon quote

0.043

M4 to M20
#5 to 1 1/2

#8

M4

276

4.4

2.3

7.6

-160℃ to 500℃

200

EN 2.4819 or equivalent

Surface hardening

Under acid environment, chemical processing industry,
Evaporators, deep sea excavators, etc.

≥520HV0.05

PRE value 68

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About Company Handling This Product

Nord-Lock Group

Company Overview

Nord-Lock Group, established in 1982 and headquartered in Sandviken, Sweden, is a manufacturer and supplier of...

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  • Sweden

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Metal Washers
Metal Washers　Nord-Lock Group
Nord-Lock Group

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