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2022-06

Features and uses of half-round head screws

Screws play a vital role in industry; as long as industry exists on Earth, the function of screws will always be important. Screws are a common invention used in people's production and life for thousands of years. In terms of application fields, it is a great invention of mankind. A half-round head screw has a single slot head type, and after installation, the semi-circular screw head is exposed to the installed surface. The semi-circular screw head is exposed to the installed surface. The main plastic material of the semi-circular screw is nylon 66. A type of screw that is a standard fastener. The above is my initial understanding of semi-circular head screws. In fact, this semi-circular head bolt is a very common accessory, but it is used in

2022-06-20

Features and uses of half-round head screws

27

2022-06

How to check the thickness of the coating on a semi-head screw?

How to check the thickness of the coating on a half-head screw? There are two types of screw surface inspections: one is the inspection before electroplating after the screw is produced, and the other is the inspection after electroplating, that is, the inspection after screw hardening and surface treatment. After the screw is produced, before electroplating, we check the size, tolerance and other aspects of the screw to see if it meets national standards or customer requirements. After the screw surface treatment, we inspect the electroplated screws, mainly checking the color of the plating and whether there are any defective screws. So, how to check the thickness of the coating on a half-head screw?

2022-06-27

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