Midwest Fastener #4 Split Lock Washer

The Midwest Fastener #4 Split Lock Washer is designed to prevent nuts, bolts, and screws from loosening due to vibration and torque. Constructed from high-strength steel with a bronze finish, this helical spring lock washer provides reliable tension and secure fastening across a variety of mechanical and hardware applications. Featuring a split design that compresses under load to exert continuous spring pressure, this lock washer helps maintain assembly integrity over time. Ideal for automotive, agricultural, industrial, and general fastening projects requiring dependable holding power.