DONASI untuk pengembangan profil pesantren 1.820, kitab 700, makam 634, biografi Ulama 2.577 dan silsilah, tuntunan ibadah, Al-Qur'an dan Hadis serta asbabulnya, weton, assessment kepribadian, fitur komunitas media sosial.
What DIN 7161 covers DIN 7161 is a German standard that specifies dimensions, tolerances, and technical requirements for metric threaded pins (Gewindestifte) with hexagon socket (internal wrenching) or similar small threaded fasteners used primarily as set screws, locating pins, or for securing components without a head. It defines form factors, thread engagement lengths, permissible deviations, surface treatments, and marking where applicable. The standard ensures interchangeability and reliable mechanical function in assemblies across industries such as machinery, automotive, and tooling.