Basic Knowledge of Screw Products: What are P=3 and P=4 in Sems screws?
There are different types of semis, and the names and notations change depending on what is included!
Semus screws (integrated screws) are products that incorporate flat washers or spring washers into the screw. There are different types of Semus, and the naming and notation change depending on what is integrated. When requesting Semus, you will need to choose the type of head you prefer. *For more details, you can view the related links. For further information, please download the PDF or feel free to contact us.*
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