Rivfix* Round Serrated Shoulder Rivet Bush

'Substitute the gauge size or sheet thickness for the ?? In the part no. followed by the finish code ''00'' for self colour, ''40'' for ZY, ''60''for ZC or SS for Stainless Steel' in place of the final ??.
RRB Round Rivet Bushes have a serrated shoulder to provide hi torque resistance, superior to serrated spigot rivet bushes as the serrations are radial from the spigot to the outer diameter of the body therefore gripping on a greater surface area than the serrated spigot type. They are not quite so critical on hole dimensions as the serrated spigot type that need close tolerance holes in order to bury their serrations into the wall of the hole. The serrations on the serrated spigot type usually have to be finer than those of the serrated shoulder type due to the splitting problem experienced when pieneing over the serrated spigot. Even when they are successfully piened over there is a tendency to flatten the serrations rather than to penetrate the surface of the sheet. The foregoing illustrates that the serrated shoulder bushes with their coarser knurl and larger surface area contact are superior performance products. Bushes are available in Steel self colour and plated or Stainless Steel and in some cases Brass and Aluminium subject to special order, provided the quantities are large enough to warrant material purchase and machine set up costs.