DIN 127B is a type of washer made by RSG Fasteners. Washers are small, flat pieces of metal that are used in construction and repair work. They help to spread out the pressure of a screw or bolt when it is tightened, which prevents damage to the surface being fastened. The "B" in DIN 127B means that these washers have a special design that makes them effective at keeping things tight. RSG Fasteners is known for making high-quality products, so when you use their DIN 127B washers, you can trust that they will hold up well and keep your projects secure. These washers are often used in machines, furniture, and many other everyday items.