Products

Lock Washer – Anti-Vibration Fastening Solution for Bolted Joints under Dynamic Loads

A lock washer is a mechanical fastening component placed under a nut or bolt head to resist loosening caused by vibration, thermal cycling, torque, and dynamic loading conditions. Available in multiple configurations including split lock washers (spring tension), toothed lock washers (serrated bite), Belleville disc springs (preload maintenance), and wedge-locking systems (cam-action rotation resistance). Manufactured from spring steel (65Mn, 60Si2Mn), carbon steel, stainless steel (304, 316), and specialized alloys with surface treatments including zinc plating, dacromet, black oxide, and hot dip galvanizing. Typical applications include heavy machinery, automotive chassis and powertrain, aerospace fastening, railway systems, industrial equipment, and structural steel connections. Available in metric sizes M3–M64 and imperial sizes #4–2″, compliant with DIN 127, DIN 6798, DIN 6797, ASME B18.21.1, and GB/T 94 standards