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Square Nuts , Class 8.8 (DIN 557)

Square Nuts are just four-sided nuts, but compared to standard hex nuts, square nuts have a greater surface in contact with the part being fastened, and therefore provide greater resistance to loosening. Square nuts are typically mated with square-headed bolts.

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SupplierLocTypeMaterialFinishSizeDescriptionQty 
APIIASquare NutClass 8.8Zinc/ClearM8-1.25nut sq cl8 zncl din 5571,260
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