Nylon Lock Nuts A2 Stainless Steel Hex Locking Metric Nut M3 -M10 Insert Nylok

Stainless Steel Grade A2 A2 A2 A2 A2 A2 A2 A2. All Sizes M3, M4, M5, M6, M8, M10 . What is A2 Stainless Steel?. A2 stainless steel is commonly referred to as 18-8 since it contains 18% chromium and 8% nickel.

eBay