M3 Nord-Lock® Standard Washer with Delta Protekt®

Nord-Lock wedge-locking steel washers utilise tension instead of friction in order to secure bolted joints exposed to severe vibration and dynamic loads.

Over the operational life cycle, Nord-Lock washers offer increased operational reliability and lower maintenance costs, while significantly reducing the risks of production stops, accidents and warranty claims.

Nord-Lock wedge-locking washers have been rigorously tested and approved by independent institutes as well as certification authorities.

Advantages:

• Quick and easy to install and remove with hand tools
• Locking function not affected by lubrication
• High corrosion resistance, tested minimum 1,000 hours in the Neutral Salt Spray Test
• Reliable locking, even for joints with short clamp length
• Reusable, depending on conditions of use
• Nord-Lock washers are available in two outer diameters — standard and enlarged. Washers with an enlarged outer diameter (SP washers) are designed to be used together with flanged bolts and nuts (ISO 4161,4162) on oversized and slotted holes, or on sensitive surfaces and soft materials.

The type we offer here is the standard version for m3 bolts.

Component features:

• Metric Bolt Size: m3
• UNC Bolt Size: #5
• Metric Inner Diameter (d): 3,4mm
• Metric Outer Diameter (D): 7,0mm
• Metric Thickness (T): 1.8mm
• Applications: General steel applications
• Material Standard: EN 1.7182 or equivalent
• Hardening: Through hardened
• Hardness: = 465HV1  (about 46 HRC Rockwell C)
• Hardness Info: In order to assure the unique mechanical locking function of the Nord-Lock washers, the hardness of the mating surfaces must be lower than the hardness of the Nord-Lock washers.
• Base coat: Delta Protekt® KL100 zinc flake
• Top coat: VH302GZ
• Corrosion Resistance:Minimum 1,000 hours in salt spray test, according to ISO 9227
• Temperature Range: -50°C to 200°C
• Bolt Grades:Up to 12.9
• Product Group ID:NLO-DP-SP
• EAN: 7330948031730
• Original Article Number Nord-Lock:1206