A2 Stainless Steel Penny Repair Washers Sizes M4 M5 M6 M8 M10 12. A2 Stainless is often referred to as ‘Type 304’ and contains 18% Chromium, and 8% Nickel. It is resistant to sterilising solutions, foodstuffs and inorganic chemicals, and is used extensively in the food production / preparation industry.
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