DIN 1587 ： 六角圓頂蓋螺母

DIN 1587 refe to a German standard (Deutsches Ititut für Normung) that specifies the requirements for a type of nut called a "cap nut" or "acorn nut". Cap nuts are designed with a rounded, dome-shaped cap on one end, which cove the end of a threaded fastener (such as a bolt or screw). This cap serves multiple purposes, including protection from injury due to exposed sharp threads, preventing corrosion by covering the threads, and providing a more aesthetically pleasing nuts are typically made from various materials such as stainless steel, brass, or nylon and can be used in a wide range of applicatio. They are commonly used in the automotive, cotruction, and furniture industries. The DIN 1587 standard outlines the size, dimeio, materials, and other technical requirements for these cap nuts to eure coistent quality and performance.