Steel Bulkhead Locknut, 1/2-20 Thread

A
0.25
Alternate Part Numbers
Alternate Part Number C1JC36
B
0.75
Brand
Danfoss Power Solutions (II LLC Aeroquip)
Brand
Danfoss Power Solutions
Pack Size
1.00
UOM
EA
Finish
None
Materials
Carbon steel
Series
210212
Supplier Part Number
210212-5S
Thread 2
1/2-20
Thread Sealant
No
Tube O.D.
0.31
Tube O.D.
0.31
Type
Locknut
Product Weight
0.02 lbs

Product Questions & Answers

Got a bulkhead fitting that calls for a 1/2-20 locknut, is this the right nut for that?
Question by: Jimmy J on Jul 8, 2025, 2:10 PM
The key callout on this part is the 1/2-20 thread. It is a steel bulkhead locknut in the Danfoss and Eaton 210212 spare part line, so it matches applications that specify a 1/2-20 bulkhead nut.
Answer by: Customer Support on Jul 10, 2025, 10:25 AM
Will this nut work to hold a fitting through a panel?
Question by: Norm H on Jan 7, 2026, 6:30 AM
Exactly, this bulkhead nut is designed for securing fittings tightly through panels or walls, providing a solid, leak-proof connection.
Answer by: Customer Support on Jan 8, 2026, 3:07 PM
Is this the right locknut for a 210212 series bulkhead fitting, or do I need something different?
Question by: Diane P on Mar 11, 2026, 3:00 PM
For the Danfoss / Eaton 210212 series, this is the correct spare part bulkhead nut. It carries catalog number C1JC36 and comes from Eaton Aeroquip, so it matches that series directly. The thread is 1/2-20, with an A dimension of 0.25 and a B dimension of 0.75, so double-check those measurements against your fitting before ordering if you've got any doubt about which size you're working with.
Answer by: Customer Support on Mar 13, 2026, 6:16 AM

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