The brass knurled screw shown are custom-made, which are processed by CNC lathe,There are many kinds of small screws for glasses or large screws for large-scale heavy and electric engineering. The main purpose is to use industrial products with high height to form a fixed body. If the teeth can’t be closed in use, the screw head will be broken if it is locked too hard, or the tooth lines can’t be locked tightly, which can’t meet the use conditions, it’s a problem of quality accuracy. The details shall be subject to the drawings.

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