Midwest Fastener 3/8 in. Medium Split Lock Washer

The Midwest Fastener 3/8 in. Medium Split Lock Washer is designed to provide consistent tension and prevent threaded fasteners from loosening due to vibration, shock, or thermal cycling. Engineered for reliable performance, this washer exerts continuous spring pressure against the fastener head or nut to maintain a secure hold in demanding mechanical and structural assemblies. Constructed from premium stainless steel, this split lock washer delivers superior corrosion resistance and durability in both indoor and outdoor environments. Ideal for industrial, automotive, and general hardware applications, it offers dependable locking action to protect your assemblies over time.