1、A2‑70 Austenitic Stainless Steel: Adopt A2‑70 stainless steel, which is usually called 304 or 18/8 because of contains 18% chromium and 8% nickel, which is an austenitic stainless steel, almost non magnetic 2、Wide Applications: Bolt socket cap screw is suitable for a wide range of applications in many different industries, commonly used in engineering industry and construction, and also perfect for many different DIY jobs at home or garage 3、Applicable To 6mm Diameter Wrench: Available with wrench size, applicable to 6mm diameter wrenches, very convenient for you to use 4、Corrosion Resistant: A2‑70 cap bolt is the most commonly used grade, 70 represents a tensile strength of 700N/mm², easy to clean and corrosion resistant, very durable 5、Indoor Or Outdoor Applications: A2‑70 cap bolts are very suitable for various purposes in indoor or outdoor applications that require a good surfacetreatment in general speaking