3/8″ Hardened Split Spring Lock Washers (6,000 Case) – Hardened Carbon Steel, Zinc Yellow Finish – Vibration-Resistant, Compatible with Grade 8 Fasteners

["Designed for 3/8″ Fasteners: Precision-sized helical split spring lock washers designed for use with 3/8-inch bolts and nuts to help maintain clamp load in vibration-prone assemblies. Bulk case of 6,000 split lock washers.","Hardened Spring Steel: Manufactured from strong carbon steel to provide strength, resilience, and consistent spring tension under load. J403.","Vibration-Resistant Locking Action: Split lock washer design helps resist loosening caused by vibration, movement, and thermal cycling. Compatible with Grade 8 fasteners. Also compatible with Grade 5 and Grade 2 fasteners.","Compatible with High-Strength Fasteners: Suitable for use with high-strength fasteners, including Grade 8 bolts and nuts, where hardened washer support is recommended to maintain clamping force.","Zinc Yellow Corrosion Protection: Bulk Pack for Professional Use: 6,000-count is ideal for automotive repair, trailers, machinery, fabrication, and maintenance operations. Zinc yellow plating provides corrosion resistance and durability for automotive, industrial, and shop environments."]