Selecting the stud

Thread tolerance RIVNUT® internal threads are manufactured to the most common industrial tolerances (6H, in accordance with ISO 68). They are designed for use with most commercially available screws, i.e. including the most commonly used screw tolerance 6g.

Thread lubricant For the installation of large numbers of RIVNUT®, and in particular when using stainless steel components, to obtain the best connections every time, we recommend that the mandrel is lubricated before installation starts and after that at regular intervals.

Screw length
In a RIVNUT® with an open end body The screw must project at least one thread length beyond the RIVNUT® open end.
In a RIVNUT® with a closed end body To calculate the maximum shaft length of the screw (Pmax.) for use in a closed end RIVNUT®, first determine the length L2 of the corresponding open end RIVNUT®. Then Pmax. = L2 + e + E + X

Hole in the attached part
The recommended diameter d2 of the hole in the attached part is equal to the screw diameter multiplied by 1.1. If countersunk or flat heads are used for a multiple RIVNUT® blind rivet nut installation in one workpiece, then if necessary this value should be altered to achieve equal spacing.