Nord-Lock® Lock Washer Self-Locking Steel 5/8" (M16)

• Resists loosening caused by vibration
• Ease of assembly and disassembly
• Locking function not affected by lubrication
• Positive locking – low or high preload levels
• Minimum surface marring or scratching
• Zinc flake coated with Delta Protekt® for superior corrosion resistance – up to 6 times longer than standard zinc plating
• Thru-hardened: Minimum 44 HRC, Maximum 51 HRC
Available in either a Standard O.D. or a Large O.D. series. The Standard O.D. series is designed for counter-bore holes according to DIN 974. The Large O.D. series washers are designed for use on large/slotted holes, painted/sensitive surfaces or soft materials. They can also for use with flanged bolts or nuts for optimum load distribution.