Headless fastening system.
Safety and reliability.
When assembly and disassembly actions are frequent, to avoid damaging the thread of the nut
![](https://www.lls.it/en/wp-content/uploads/sites/3/2022/04/Prigionieri-schema1.jpg)
DIN - UNI - ISO
Stud screws certified according to international standards.
![](https://www.lls.it/en/wp-content/uploads/sites/3/2022/04/Prigionieri-schema1.jpg)
For different uses
Type of connection used for basic pieces of soft and / or expensive materials due to the complexity of the machining.