The Brass flange round nut shown are custom-made nuts, which are processed by CNC lathe, A flange nut is a nut with a wide flange at one end that acts as an integrated washer. This is used to distribute the pressure of the nut over the part being fixed, reducing the likelihood of part damage and making it less likely to loosen due to the uneven tightening surface. Most of these nuts are hexagonal in shape.

Origin	Yantai china	Material	Brass
factory	Yes	Minimum tolerance	0.02mm
Processing method	Cnc lathe	Maximum diameter	44mm
Monthly production	A million pieces	Maximum length	60mm