Re: Sockethead cap screw questions


"Robin S." <lasernerd@xxxxxxxxxxx> wrote in message
news:1183153994.489545.7410@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Jun 29, 4:55 pm, "Tom Gardner" <tom(nospam)@ohiobrush.com> wrote:
It seems that when we have a job that involves disassembly, the biggest
part
of the job is cleaning the heads on SHCSs especially if they are
countersunk. They get filled with a mixture of oil, sawdust and corn
starch. (you could use this material to build bomb shelters) So. I have
made little digging tools from spring wire. BTW, the wire stays used to
hold fiberglass insulation in between joists makes great little
hardenable
tools. I'm wondering if there is a material that we could pre-fill these
cavities that would be easier to remove.

Maybe some type of grease. Inserting a hex key will push it out of the
way, and it's not a major issue if it gets on everything. Holds the
dirt, however.


The other problem I run into is that some machine parts have to come
apart
often and on small screws like 10-24s in cast iron, a ham-fister can
easily
blow-out the threads in the iron. One way of limiting the torque that
the
operator can apply to the fasteners is I have cut hex keys down. Is
there a
better way?

What's the thread engagement in the cast?

The thinnest casting would be 1/2". It seems these machine parts are made
of the softest, weakest iron.


.

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