1Austenitic Stainless Steel: Made of A2 stainless steel, which is usually called 304 or 18 or 8 because of contains 18 percent chromium and 8 percent nickel, which is an austenitic stainless steel, almost non magnetic 2Easy To Clean And Corrosion Resistant: A2-70 hex bolt is the most commonly used grade, 70 represents a tensile strength of 700N or mm, easy to clean and corrosion resistant 3Wide Range of Applications: Socket cap screw is suitable for a wide range of applications in many different industries, such as car body panels and bumpers in the automotive industry, food industry and catering industry, and also commonly used in engineering industry and construction 4For Many Different DIY Jobs: Hex bolt is also favored by remote control and model making enthusiasts, which is favorite for many different DIY jobs at home or inside and outside of the garage, suitable for jobs that cannot be done with standard BZP fasteners 5Good Surface Treatment: Generally speaking, A270 bolts are very suitable for various purposes in indoor or outdoor applications that require a good surface treatment Item Type: Hex Bolt Product Material: A2-70 stainless steel Standard: DIN 912 Head Diameter: Approx. 16mm or 0.6in Head Height: Approx. 10mm or 0.4in Thread Diameter: Approx. 10mm or 0.4in Pitch: 1.25mm Applicable Hex Key Size: Approx. 8mm or 0.3in What Is A2 Stainless Steel A2 stainless is commonly referred to as 304 or 18 or 8 because it contains 18 percent chromium and 8 percent nickel. A2 is an austenitic stainless steel and is almost non magnetic but will still stick lightly to a magnet due to the cold working process. A2-70 is the most commonly used grade, the 70 represents a tensile strength of 700N or mm2. A2 is suitable for a wide range of applications in alot of different industries such as the automotive industry in applications such as body panelling and bumpers etc, the food industry and catering due to its ease of cleaning and corrosion resistance, also commonly used in the engineering industry and architecture, A2 is also favoured by the remote control and model making enthusiasts. Also a favourite for many different DIY jobs in and around the home and garage for those jobs where a standard BZP fastener will not do. In general A2-70 is ideal for a whole range of uses where a good finish is needed on an interior or exterior applications. 4 x Hex Bolt M10x20