DIN 557 specifies class C square nuts with metric coarse threads, designed for applications where larger bearing surface and anti-rotation properties are required. The square shape provides improved
ASME B18.2.2 Table 2 specifies square nuts covers inch-series square nuts recognized as American National Standard. These nuts feature a square configuration that provides greater bearing surface and
JIS B 1163 specifies single chamfered square nuts with metric coarse threads, widely used in Japanese industrial applications. The single chamfer design facilitates easier starting during assembly
ASME B18.2.2 Table 9 specifies heavy square nuts with increased thickness and larger width across flats compared to standard square nuts. This heavy-duty design provides enhanced thread engagement
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