I've missed something somewhere, or maybe not.
We're all familiar with Section 5, but I'll repeat it here for clarity.
Question is, how big is an acorn? When I inspect, I see them in all sizes, quite a few being small enough to make me nervous. Here are some pretty ones, at least to my eye:
A little less wonderful, good enough for most, but...
And I've seen some small enough to pull through without much effort.
So, is there a published criteria specifically for the shop heads on trailing edge double flush rivets? I've been assuming it is the standard 1.5 x shank size minimum, so please correct me if wrong.
I doubt many folks are using vernier calipers with pointy little jaws to measure a shop head down in a recess. I assume most are doing it visually. Here's a visual representation, to scale, comparing manufactured head diameter (i.e dimple diameter) to minimum (I think) shop head diameter.
Comments?
We're all familiar with Section 5, but I'll repeat it here for clarity.
Question is, how big is an acorn? When I inspect, I see them in all sizes, quite a few being small enough to make me nervous. Here are some pretty ones, at least to my eye:
A little less wonderful, good enough for most, but...
And I've seen some small enough to pull through without much effort.
So, is there a published criteria specifically for the shop heads on trailing edge double flush rivets? I've been assuming it is the standard 1.5 x shank size minimum, so please correct me if wrong.
I doubt many folks are using vernier calipers with pointy little jaws to measure a shop head down in a recess. I assume most are doing it visually. Here's a visual representation, to scale, comparing manufactured head diameter (i.e dimple diameter) to minimum (I think) shop head diameter.
Comments?
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