Shenzhen Shi Shi Tong Metal Products Co., Ltd

  Why is oxalic acid used in the production of stainless steel round head screws? Before, a customer ordered an M5*35  stainless steel round head screws  for the Shi Shi Tong screw manufacturer. When ordering the material, the production manager told the management staff of the wire warehouse that he would have ordered the stainless steel material of oxalic acid. So why do we need oxalic acid wire? The advantages of over oxalic acid for the stainless steel round head screw wire are: one is that a layer of lubricant is formed on the surface of the wire so that the surface of the wire is not in direct contact with the mold, which protects the mold and prolongs the service life of the mold. The second is that the wire will change. Be softer and easier to do. However, the stainless steel wire over oxalic acid also has disadvantages, that is, it cannot be stored for too long and is easily oxidized. Therefore, during transportation, avoid packaging damage caused by co...

  Round stainless tapping screws, can they be delivered within 6 days? Mr. Zhou is in urgent need of a batch of  round stainless tapping screws , but the head size of his screws is a little too big compared with the standard ones. According to the standard head size, the hole could not be plugged, so he looked for a nearby manufacturer and found Shi Shi Tong, asking if we could deliver the goods within 6 days. The specification of this  round stainless tapping screws  of Mr. Zhou is 2*6. It happens that the specification of ST 2.0 pan head screws produced by Shi Shi Tong is now on the machine, but the head type is different from that required by the customer. Moreover, the workshop is busy with orders, the starting process will be finished by noon, and the machine will be changed in the afternoon.   So Mrs. Song immediately called Mr. Zhou to explain the situation. If he decided to place an order with Shi Shi Tong, she also asked Mr. Zhou to confirm as soon as p...

  Round head self tapping screws, how to check the quality of surface plating? When the  round head self tapping screws  need to be surface-plated, how do we check the quality of the surface plating of the screws? Some customers have requirements for the surface plating thickness of the  round head self tapping screws . When the plating is completed, specific instruments are needed to check whether the thickness of the surface plating layer has reached the customer’s standard. If it is not reached or far exceeds If the customer’s request is not met, it is necessary to remove the surface plating and re-plating. If it is far beyond, it is generally asked if the customer can accept it. If it doesn’t work, it needs to be re-plated. If the surface to be plated is white, the color is very different from the sample, and the plating is wrong, such plating is unacceptable and re-plating is required. If the surface of the same batch of  round head self tapping screws ...

  round head self tapping screws no drawings can it? Generally speaking, when customizing or purchasing screw fasteners, the customer basically gives the drawings of the screws to the screw manufacturer, which is convenient for the manufacturer to produce and determine the scope of production. However, if the  round head self tapping screws  have no drawings, can they be produced or customized? If the customer needs to customize the  round head self tapping screws , there is no drawing, but if you know the full size of the screw, you can tell the screw manufacturer the size of the screw, then the screw manufacturer will draw according to the size described by the customer, and draw the screw. The drawings are given to the customer to confirm if this is the case. If the customer does not have a drawing, know the thread diameter and length of the  round head self tapping screws , and do not know the diameter of the head of the screw. Screw manufacturers generally ...