Stainless Steel or Monel Rivets in the Steps

[riobison]

Gents,

Cracked passenger step so I'm doing both steps in my 9A. A few of the holes are oversized for the Vans supplied MSP 42 pop rivet (shear appears to be 350 psi or more). Initially I thought they were stainless but further investigation is that they are Monel.

A 5/32 stainless rivet would have a shear of 650 psi

In Red Deer I can get Stainless fairly easy. Monel, its back to another on line order and shipping and 10 days or so and another $50 to $80

We do use a lot of SS screws on our AC. Any reason why I wouldn't want to go up one size in a SS rivet for the step? Or just use screws that matter?

Thanks

Tim

 

[terrye]

I wouldn't recommend screws. Rivets expand in the hole as they are being driven, eliminating any play. Screws have clearance to the hole and rely on clamp load to resist the rotational moment that standing on the step creates.

 

[I-TERA]

SS or Monel are dangerous on aluminum if you do not electrically insulate the junction and grant the insulation for the life of the joint.

 

[riobison]

SS or Monel are dangerous on aluminum if you do not electrically insulate the junction and grant the insulation for the life of the joint.

Screws holding our inspection panels are stainless are they not? Some might be cadmium plated as well but most of mine are stainless. AC Spruce has a catalog full of them.