As a long-year manufacurer of screw making, we are familiar with production process.
Heading
The production process is coordinated by the Production Management Division. The heading personnel checks the required specifications of the products ordered and prepares the wire rod and molds needed. Prior to production, the quality of the wire rod and the dimensions of the molds are checked to ensure that they correspond to the requirements and specifications indicated on the order form. The molds are installed, following a test to verify that the positions are properly aligned. The first headed product in each batch is inspected according to length, diameter, depth, and appearance of the head. Regular inspections during production are carried out and subsequently recorded. After the manufacturing process is completed time of the manufacturing process as well as the name, specifications, and weight of the contained products.
Pinch Pointing
The pinch pointing process is a special process in the manufacturing of self-drilling screws that takes place between the heading & threading process. In order to enable screws to be driven into the stud easily, a good drill point is essential. To make sure all self-drilling screws have precise drilling points, the operator selects random samples form the settled dies and places them in the furnace for a pre-heat treatment test to confirm adequate drilling capacity. If the results are positive, the production will continue. If not, the dies have to be readjusted until the samples are acceptable. Due to our meticulous quality control we have yet to receive any complaints form our customers.
Threading
Threading is an exceptionally important process in the manufacturing of drywall screw & self-drilling screws. Similar to the pinch pointing process, the operators have to heat treat the samples before production. In this process, we have to test the drilling time, check the thread angle, point angle and major & minor diameters. In order to maintain competitiveness, we have set up our own rolling dies’ factory in order to produce any special kinds of thread for our customers.
