#4 Split Lock Washer, Stainless Steel A2 (18‑8)

Manufactured from A2 (18‑8) stainless steel, this #4 split lock washer provides dependable resistance to loosening caused by vibration and movement. The split, spring‑style design maintains tension under load to help preserve clamp force. Excellent corrosion resistance makes it well suited for automotive, industrial, and general‑purpose inch‑series applications.