In this schematic the "Nut, Flange, 8mm" is used most often.
A sample from the products for the Muffler (2) include: Screen Comp., Protector B,muffl, Nut, Flange, 8mm, Clamp.water Hose.
The most reasonably priced component used on the Gd410\vbl\14zg30e2 Muffler (2) is the Nut,flange,8mm.
