Steel Bulkhead Locknut, 2-1/2 - 12 Thread

A 0.22	Alternate Part Numbers Alternate Part Number A210212-32S, Alternate Part Number C1MX23	B 0.63	Brand Brennan Industries Inc	Brand Brennan Industries	Pack Size 1.00	UOM EA	Supplier Part Number 0306-32	Thread 2 2-1/2 - 12	Thread Sealant No	Tube O.D. 2	Tube O.D. 2	Product Weight 0.20 lbs

Product Questions & Answers

Trying to match up parts here, is this locknut the one with a 2-1/2 - 12 thread?

Question by: Cody M on Jan 27, 2026, 8:47 PM

Thread size is the main identifier on this one, and it is called out as 2-1/2 - 12, so it matches that bulkhead locknut thread.

Answer by: Customer Support on Jan 29, 2026, 6:47 AM

Model Number	Tube O.D.	Thread 2	A	B
210212-5S	0.31	1/2-20	0.25	0.75
210212-6S	0.38	9/16-18	0.27	0.81
210212-8S	0.5	3/4-16	0.31	1
0306-32	2	2-1/2 - 12	0.22	0.63
210212-10S	0.63	7/8-14	0.36	1.12
210212-12S	0.75	1-1/16 - 12	0.41	1.38
210212-4S	0.25	7/16-20	0.25	0.69