Zhoushan first plastic machinery co, .ltd.

The outer surface is cut with a spiral grooved cylinder or ascrew manufacture of zhoushancone with a tapered spiral groove. Screws have different heads, and others, such as large flat screws, hexagon socket screws, and the like.

产品:

double alloy screw

The outer diameter of the metric thread is in millimeters, such as 6, 8, 10, 12, 18, 20 mm, etc.The pitch is also in millimeters.