Fastener name & source

[alsinaj]

I need to replace a couple of fasteners in my Hendy lathe, but don't know what they are called or where to find them. They have a tall square head with an integral washer. These happen to be 1/2" UNC. Was surprised not to find them on the McMaster-Carr website. Anyone know what they are called & where they can be found?

[ERBenoit]

A bit vague

I do not know the answer. What exactly are these "fasterers" being used for?

Not being rude, a good description of the fastener, but unless anyone here has a Hendy, and knows specifically what you are referring to, they may know what you are looking for, yet may not know it.

[Forrest Addy]

They're called several thing but the only name I can recall is a washer face bolt (if it has a standard driving feature) or setscrew if the triving feature is the same as the nominal thread size.

Usually these are custom made machined parts the manufacturer uses to set their product off from the competition.

[J Tiers]

Hard to find. I think you make them.

Often used because the wrench does not slip down off them. So good for stuff you want to be able to leave a wrench on, but want to be able to remove it without trouble..... Carriage lock, toolpost screws, etc.

[wierdscience]

They were called Collar Screws,haven't seen them in catalogs in years.The folks at Armstrong use them on some of the're tool holders so they might be a source.

Other wise some 4140 and machining will be in order.

[alsinaj]

Thanks.

Found something very close at McMaster-Carr under the name "square head set screw with shoulder." Pricey, though.
Thanks.

[ERBenoit]

Oh Those...

They were called Collar Screws,haven't seen them in catalogs in years.The folks at Armstrong use them on some of the're tool holders so they might be a source.

After seeing this, and what you found, now I recognize what you were looking for.

Kind of makes ya' (me) feel like a dolt for not recognizing it right away.

Perhaps some of the machinery places/dealers mentioned on this board may have them. Plaza is a name often seen here, I've never dealt with them.

MSC may be another possible source.

[SGW]

Given the price McMaster-Carr (and presumably any other supplier) wants for them...I think I'd make 'em. I made a bunch for my "Kiwi" engine. It's not particularly difficult, although the ones I made were 6-40s, not 1/2".

The ones you need for the Hendy lathe; are they 1/2-13 or the old standard 1/2-12?

[alsinaj]

Fastener thread

SGW,

They are 1/2"-13. Why do you ask?

John

[SGW]

I just thought it might be a "gotcha." A friend of mine was once refurbishing an old hit-and-miss engine and bought a bunch of new 1/2" bolts...only to discover the holes were threaded 1/2-12.

[Evan]

or the old standard 1/2-12?

As the joke goes in the computer business: The nice thing about standards is that there are so many of them.

[ligito]

Fastener companies, like Tacoma screw company and others, sell them.
They may also be what OEM car companies, like Ford use.