When we look at the underside of the head of the hexagon head bolt, we sometimes see a relatively obvious R angle, so why is there an R angle under the head of the screw? The following Yueluo editor will take you to see the specific situation.
The R angle is generally set under the head of the hexagon head bolt to protect the head of the screw from being broken when screwing. There is an R angle under the head. Generally, the diameter of the head is relatively large, and when the diameter of the rod is relatively large, it will be set; or the groove is a bit deep, in order to prevent the head from breaking during screwing, it will be set under the head. R angle, or change the thickness of the head of the screw, the size of the rod, etc.
But some customers feel that adding an R angle under the head makes it inconvenient for them to use it with the spacer. Because their spacers are purchased according to the standard size, and once the R angle is added under the head of the screw, there will be a mismatch when using it.
In this case, either change the inner diameter of the gasket, or do not use the gasket, or change the head to a belt, which can also save the gasket.
Guangdong Luo Hardware Industry Co., Ltd. is a manufacturer with many years of experience in screw production and customization. It can customize screws with different head and groove types according to customer requirements, and provide you with suitable fastener solutions.