Stainless Steel DIN316 Butterfly Wing Bolt

The butterfly screw is also known as a wing screw. Wing screw has a wing-like projection from the head of the screw, ideal for thumb and forefinger leverage in turning. Ensures rapid assembly and disassembly using only your hand. Stainless steel does not readily corrode, rust or stain with water as ordinary steel does. However, it is not fully stain-proof in low-oxygen, high salinity, or poor air-circulation environments. There are different grades and surface finishes of stainless steel to suit the environment the alloy must endure. Stainless steel is used where both the properties of steel and corrosion resistance are required. Stainless steels contain sufficient chromium to form a passive film of chromium oxide, which prevents further surface corrosion by blocking oxygen diffusion to the steel surface and blocks corrosion from spreading into the metal’s internal structure. Passivation occurs only if the proportion of chromium is high enough and oxygen is present. Both 304 and 31…

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