Why does Mr. He want to change the supplier of the square head self tapping screws?
Why does Mr. He want to change the supplier of the square head self tapping screws? Square head self tapping screws are often used for drywall nails and wood screws. The head type is a countersunk head and a bugle head. However, Mr. He’s square head self tapping screws are not the above. Mr. He’s screw head type is flat. However, Mr. He’s previous square head self tapping screws always have problems. Mr. He’s requirements for the square head self tapping screws are a knife under the head, no burrs, no size difference. Mr. He feels that this request is very simple, but when the previous screw manufacturer supplied him, there was always a problem. There was not a certain number of screws with burrs on it, some of them were out of size, and there were scratches under the head. Or just slip it when you use it. Mr. He’s patience is about to be exhausted by them. Finally, Mr. He plans to change a screw supplier to produce a square head sel...