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Metric Nord-Lock Wedge Locking Washer
Nord-Lock wedge lock washers are a high-quality brand name washer that secure bolted joints with tension instead of friction. A single "washer" is comprised of a pair of lock washers that have cams on one side and radial teeth on the opposite side.
The rise of the cams between the Nord-Lock washers is greater than the pitch of the bolt. When the bolt and/or nut is tightened, the teeth grip and seat against the mating surfaces. The Nord-Lock wedge lock washer is locked in place, allowing movement only across the face of the cams. Any attempt from the bolt/nut to rotate loose is blocked by the wedge effect of the cams.
Material
Through-hardened carbon steel construction makes these washers suitable for use with Class 12.9 (extreme strength) fasteners.
Steel Type: EN 1.7182
Washer hardness: ≥ 465 HV1 / >= 46 Rockwell HRC
Corrosion resistance: Minimum 1,000 hours in salt spray test (according to IS09227)
Common industries include energy, transportation, mining, offshore, construction, manufacturing, agriculture, etc.
