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Bumax 88 ISO 4017 Hex Set Screw

• The combination of low carbon content and the increased content of alloying elements gives the fasteners BUMAX® 88 superior resistance to corrosion.
• Laboratory tests and practical application have shown that the special composition gives BUMAX® products unsurpassed performance in a number of vital areas.
• The striking feature of the steel’s composition is its low Carbon content and increased content of Chromium and Nickel.

• 316L Stainless with Class 8.8
• High Corrosion Resistance.
• Manufactured from a new variant of acid-proof Swedish steel SS 14.2343.

About Bumax 88

• BUMAX 88 is a premium A4 fastener that offers better corrosion resistance than standard A4 due to its higher molybdenum content.
• The PRE value of Bumax 88 is 27 and of a standard A4 only 23.
• Bumax 88 offers higher strength and lower amount of inclusions than standard A4 fasteners, that gives superior mechanical properties and fatigue resistance and fewer variations compared to standard A4.
• Bumax 88 fasteners are used in many applications that demand very low magnetic permeability, it has lower magnetic permeability and less variation from batch to batch compared to standard A4 fasteners.
• Bumax 88 is also widely used in cryogenic applications down to -269°C (4 K) and can also be provided with a pre-approval PMA for PED certificate for pressure vessels.