Are shear loads negatively impacted using Clinch Studs ?

[TMcRally]

I'm having trouble finding information on shear loads for clinch studs.

In particular these are SS400 material studs - M4 X 12 pressed into 3mm 304SS sheet to attach 2mm Zinc plated black mild steel brackets that will be subject to impact loads. I note they have reduced torque settings over bolted joints so I am worried about using them.

 

[MintJulep]

Variations in mounting hole size, sheet material, and installation procedure may affect performance. 
Performance testing this product in your application is recommended.  We will be happy to provide technical assistance and/or samples for
this purpose.

 

[TMcRally]

Thank you.

I notice Penn don't actually show a clinch stud suitable for use in stainless steel in their drill down guides. In places they say FH studs are suited to stainless steel and in others only materials ≤HB150 (304 is around HB215). I assume they are not suitable for 304 but I'll send them a note to be sure.

I'll post their response.

Thanks again
Dave

 

[TMcRally]

No response from Penn.

Thanks
Dave

 

[FacEngrPE]

Hilti usually provides good customer support, offers "direct fastening threaded studs" The tech docs associated with these fasteners provide a method of calculating a combined tensile and shear load capacity.
This is not a fastener I have used, but given experience with other hilti products I would consider investigating these if I had an application where they would be useful. They do seem a bit expensive.