High Collar Lock Washer and ordinary washers have significant differences in structure, function and application scenarios. Ordinary washers are usually flat, annular metal sheets, and their main function is to disperse the load pressure of bolts or nuts, avoid crushing the surface of the connected parts, and adjust the matching size to a certain extent. In contrast, the structure of high-collar lock washers is much more complex and unique. It has a raised, serrated or radially serrated high collar part. This core design gives it a key performance beyond ordinary washers-strong locking and anti-loosening ability.
The core working principle of High Collar Lock Washer is that its raised serrated edge can form a tight bite with the bolt head and the surface of the connected parts. When the bolt is tightened, these serrations will cut into the contact surface, generating strong mechanical resistance, effectively resisting the rotation and loosening tendency of the bolt caused by vibration, impact or thermal cycling. This means that High Collar Lock Washer can not only provide the pressure-bearing and sealing functions of ordinary washers, but more importantly, it provides an active, mechanical anti-loosening locking effect to prevent connection failure. This feature is completely absent in ordinary flat washers, which are very easy to loosen under continuous vibration.
Therefore, the working conditions applicable to the two are completely different. Ordinary washers are widely used in low-strength, non-violent conventional assembly occasions that require uniform load distribution, pressure prevention or sealing (such as flat washers or elastic washers). High Collar Lock Washer is an ideal choice specially designed for harsh working conditions where strong vibration, impact loads, alternating stress or thermal expansion and contraction may cause standard fasteners to loosen. It plays an irreplaceable role in fields such as engineering machinery, rail transportation, aerospace, and large equipment assembly that require extremely high connection reliability, significantly improving the safety and durability of key connection points.
