Seeking antique set screw

Old 02-23-10, 09:03 PM
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Seeking antique set screw

Hi all,

I'm on a quest to fix all my lose door knobs. Problem is, I don't know where to find replacements for all the stripped set screws. The screw looks like these:

But the size seems quite strange. According to the gauge at the big box store, my ruler and the chart below, the head (B) is a #6, the body (A) is a #8, the thread count is #24 and the length is ~7/16".

But what I can find at the hardware store is a typical 8/24 which results in the head not counter-sinking and preventing me from having the knob as tight against the door plate as it needs to be.

Where would I find a dozen of those old brass set screws?

What I've found at the hardware store thus far
Old 02-24-10, 03:42 AM
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Old 02-24-10, 06:01 AM
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Try this web site:

Antique Door Parts - Set Screws and Dummy Spindles

Hope this helps.

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