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06 BULKHD LOCK NUT

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 0306-06	Product Weight 0.01 lbs

Product Questions & Answers 2

Product Questions & Answers

thread size on this one is 9/16-18, that right? trying to match it up to a 3/8 tube line we already got running

Question by: Neal H on Apr 7, 2025, 9:53 PM

9/16-18 is the correct thread drill size for this lock nut, and it's sized for 3/8 inch tube OD. If you've got a 3/8 tube line, this is the one you want for the bulkhead connection. It runs a male JIC SAE 37-degree flare thread per SAE J514, so just make sure whatever you're mating it to is spec'd the same way.

Answer by: Customer Support on Apr 9, 2025, 1:30 PM

trying to match up parts here, is this lock nut for a 3/8 tube size with a 9/16-18 JIC thread?

Question by: Terry M on Nov 25, 2025, 8:15 AM

The key callouts are Thread B1 drill size 9/16-18 and a male JIC SAE 37 degree flare thread per SAE J514, with Thread B1 listed for tube OD 3/8.

Answer by: Customer Support on Nov 27, 2025, 6:31 AM