Is a stainless steel 316 clamp completely made of stainless steel 316

Yes, the clamps can be made fully in stainless steel 316.

However, the rivets are made of 304 to make sure the force and strength of the clamp can be guaranteed.

We can completely make the clamp including the rivets in stainless steel 316, however then you need to  request it.

The below picture shows the 4 rivets that need to be installed on a H-307-U-SS-316

So for these rivets, you can opt to maintain the force of 304 stainless steel while the rest is in stainless steel 316,

Or the full clamp with rivets in stainless steel 316, with slightly lower forces.