Description:These square nuts have a 4-sided, square design which provides a greater bearing surface when installing. Square nuts are designed for use with square-headed bolts, though they can also be used with some machine screws. The large surface provides better resistance to loosening. Also used with flat washers of compatible size and material.Specification:Material: Carbon steelGrade: 4.8Thread Size: M5 x 0.8mmEdge width:18mm/0.7"Height: 4mm/0.16"Package Content: 25 Pcs x Square NutsNotice for Choosing the Stainless Steel Type?The stainless steel is not absolutely rustless. It is just rust-proof in the proper condition.* For the indoor decoration or furniture, stainless steel 201 or 304 (SUS201, SUS 304) can be used. But Type 201 should only be kept in dry condition.
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