DIN 314 wing screw nut is easy to install and disassemble, and it can be screwed directly by hand, so some people also call it a hand-tightened nut. Commonly used materials for the production of DIN314 wing screw nut are 304/316 stainless steel, carbon steel galvanized, nylon 66, and other materials.
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DIN 314 - 1999 Wing nuts edged wings