Schnorr Brand Safety Lock Washers are the most trusted conical spring washer on the market.
Serrations on both sides provide a high resistance to vibration and loosening.
Series "S" Used for Lighter Duty Applications, Bolts / Screws up to Class 8.8 Strength
Series "VS" Used for Heavy Duty applications, Bolts / Screws up to Class 10.9 Strength