Shenzhen Shi Shi Tong Metal Products Co., Ltd

Understand a little bit of the basic people know about the screw, the type of screw is a lot of, such as pan head six lobe screw, truss head phillips screw, shoulder screw, long screw, small screw, and so on. So, what’s the difference between a  cross recessed countersunk head screw  and any other screw? cross recessed countersunk head screw  differ from other screws in their length measurements. Like M2*16, M2 is the diameter of the thread, 16 is the length of the screw. When measuring the length of the pan head torx screw, it does not include the head, but just the length below the head. cross recessed countersunk head screw  measure the length of the screw with the length of the head. Therefore, if we are not familiar with the measurement of countersunk head screw, we may buy the wrong screw when we buy the screw, so that the screw we bought cannot be assembled. And in the screw size, countersunk head screws do not have to be...

Mr. Pan has ordered  cross recessed countersunk head screw  from 2 different screw manufacturers, and the sizes given to them are the same.But the screws produced by these two companies are a little different. Pan from these  cross recessed countersunk head screw  see, mainly is the groove type is a little different, one of the screw manufacturers of the edge of the cross groove is straight, the center of the cross groove of the other has an arc, is not straight.Pan then asked stone if the two cross-grooves would have any effect on the assembly. In fact, this in the assembly of the time is not affected, the reason for this situation, mainly because the use of the cross groove punch is different, all  cross recessed countersunk head screw  cross groove will be different.