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BRENNAN 20MJ-12MORB STRAIGHT STNLS

Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 6400-20-12-O-SS	Product Weight 0.61 lbs

Product Questions & Answers

What size drill do I need for the B2 threads on this fitting?

Question by: Brett E on Feb 19, 2026, 8:03 AM

For the B2 threads, you'll want a 0.609 mm drill. That corresponds to the 1-1/16-12 thread size.

Answer by: Customer Support on Feb 21, 2026, 6:37 AM