10BA Raised Countersunk Screws in Steel

[aw1931Participant @aw1931]

I have tried for a few weeks looking for 10BA raised countersunk screws in steel with a countersink angle of 90 degrees however I have had no luck. The only shop I have found (Modern-screws/Screw-shop) only seems to have them with a countersink angle of 100 degrees.

Ba-bolts only has them in brass which is not really suitable for my purposes. Does anyone have any spares or ideas about where I could source them?

[SillyOldDufferModerator @sillyoldduffer]

Not without doing a comprehensive search.   My BA collection might have a few, but they’re mixed in a box, and unlikely to be 90°.  Nor do I know of a supplier.

Could you substitute metric or US?  Problem is BA is obsolescent, mostly sold to support older equipment, and rarely used by industry in anything new.   It’s slowly fading away.

Back in the day, virtually every head-type was available off-the-shelf for BA, now only a limited subset of the common types.   Though there’s New-Old-Stock about or they could be made to order (£££), finding BA can only get worse as the years roll by.  On a new build, I’d think twice before adopting BA.   Nothing wrong with the thread, the issue is availability.

Dave

[aw1931Participant @aw1931]

Unfortunately I can’t substitute it with anything else since I am repairing an old item which used 10BA. M1.7 is interchangeable with these but they are even harder to source in raised countersunk steel.

[noel shelleyParticipant @noelshelley55608]

The only help I can offer is to try talking to Alan at EKP supplies, they are manufacturers and if the number needed was viable they might be able to do a run. Good Luck. Noel.

[aw1931Participant @aw1931]

Thanks I only need around 50 or at the very most 100. Most places seem to have a minimum order of 500. I guess periodically checking eBay for NOS will be my best bet but it could be years till some come up.

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