Lock washers St NLX1/2"sp 13,2/25,4/3,59

Nord-Lock® X-Series wedge-locking spring washers secure bolted joints with a unique
multifunctional design to prevent both spontaneous loosening and loosening of bolts.
Nord-Lock® X-Series washers combine the Nord-Lock wedge-locking action with an exceptional spring action to provide an additional level of security.

The Nord-Lock® wedge lock washers with enlarged bearing surface (sp) are suitable for securing larger boreholes/long holes and on soft materials.

glued in pairs

Secures screw connections against loosening and compensates for loss of preload due to settling and

relaxation

• Reliable locking even for connections with a short clamping length
• Achieves precise preload with defined and uniform friction
• Available in a wide range of sizes (metric and inch)
• High corrosion resistance (at least 1,000 hours in salt spray test according to ISO 9227)
• Resistant in environments between -40°C and 150°C
• Designed for screws of strength class 8.8 and 10.9
• Reusable (depending on conditions of use)

Nord-Lock® X-Series washers securely hold bolted joints when faced with various challenges, such as

• Material expansion and shrinkage due to thermal cycling
• Settling due to paint or powder coating
• Strong vibrations on soft metals, composite materials and polymers
• Loosening due to multiple clamped parts
• Connections with short clamping length
• Loss of clamping force in sealed connections