Midwest Fastener 1/2 in. Medium Split Lock Washer

The Midwest Fastener 1/2 in. Medium Split Lock Washer is engineered to prevent threaded fasteners from loosening due to vibration, torque, and movement. Constructed from durable 18-8 stainless steel, this washer provides reliable spring tension and superior resistance against rust and corrosion in demanding environments. Ideal for automotive, agricultural, industrial, and general hardware applications, this medium-split helical lock washer ensures a tight, secure hold between the bolt head or nut and the mating surface.