1000 Pcs Spring Lock Washers Assortment Kit – 9 SAE Sizes Split Lock Washers, 304 Stainless Steel Washers for Screws and Bolts (#4, #6, #8, #10, #12, 1/4", 5/16", 3/8", 1/2")

1100 Pcs Flat Washers Assortment Kit – 304 Stainless Steel, 9 Metric Sizes (M2–M12), Metal Washers for Screws and Bolts – Ideal for Automotive, Construction, Industrial, and DIY Use