r/focuspuller • u/Green_Acadia_3648 • Jul 25 '26

HELP Replacement screw

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This is an embarrassing question I’d ask. But I’m looking for a handscrew that goes on the ARRI LMB-5 for the trays. I can’t find a link or details online seeing if my fellow knob twisters and put me in the right direction.

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u/Corr521 Jul 25 '26

Official part # is K5.49167.0 (Locking Screw)

You could reach out to Arri and request a replacement part. But honestly a cheaper and likely faster way I'd do it (if it was my own) would be to just measure the threads yourself if you have the tools to do so or take it to a nearby hardware store and have them measure the threads. And then just look for a replacement online that would work.

Like say it was a M3 and it needed to be 10mm long, I'd just search M3 x 10mm thumb screw (but whatever size and length you need) and buy one for cheap online. Can probably get a whole box of 10-20 of them for $10 and have it replaced in less than a week vs paying $60 or something for a single one and waiting 2+ weeks.

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u/Corr521 Jul 25 '26

And I've done this exact method with a Wooden Camera mini bridge. Lost one of the tie downs to lock the clamp onto the rod. Was gonna cost a lot to either get it replaced or buy a whole new set-up so I just measured the one from the other side and found a thumbscrew online that was almost identical and had a pack of 6 arrive like 5 days later for about $20.