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10 BULKHD LOCK NUT

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Description & Features

The 10JIC Bulkhead Lock Nut is meticulously crafted by Brennan Industries Inc. This product features a 7/8-14 SAE J514 male JIC thread type making it perfect for specific industrial applications requiring reliable connections.

With an overall length of 0.360 mm and a C Hex size of 1.125 mm this lock nut ensures a secure fit. Fabricated from straight steel it offers durability and strength under various conditions. The 10 Bulkhd Lock Nut is part of the 0306 series specifically designed for critical use where secure fastening is essential.

Supplier Part Number: 0306-10

California Residents: PROP-65 WARNING

Specifications

Connection Size 1
5/8 in
Connection Type
JIC
Connection Type 1
SAE 37 deg JIC
Dimension Standards
SAE J514
Dimensions
0.36 in W
Finish
Trivalent Zinc-Plated
Fitting Type
Locknut
Hex Size
1-1/8 in
Material
Steel
Material Construction
12L14/C1045 Steel
Series
0306 Series
Thread Size
7/8-14
Tube Outside Diameter
5/8 in

Product Questions & Answers (3)

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Question by: Hugh M on Dec 15, 2025, 6:22 AM
Trying to match up parts here, is this lock nut the one that goes with a 10 JIC bulkhead fitting?
Answer by: Customer Support on Dec 16, 2025, 9:02 PM
For a 10 JIC bulkhead setup, this nut matches the common 7/8-14 SAE J514 male JIC 37 degree flare thread and it is sized for tube OD 5/8.
Question by: Connie B on Oct 11, 2025, 5:41 PM
what tube size does this bulkhead lock nut work with?
Answer by: Customer Support on Oct 12, 2025, 9:55 PM
Built around a 5/8 inch tube OD, this nut pairs with 10 JIC fittings using a male SAE 37 degree flare thread. The thread size is 7/8-14, which follows the SAE J514 standard. If your line is running 5/8 tube and you need to secure a bulkhead connection, this is the right size.
Question by: Dwight B on Mar 2, 2026, 1:28 PM
What's the deal with that Prop 65 warning for California residents? Just trying to figure out what that's about.
Answer by: Customer Support on Mar 4, 2026, 9:42 AM
The Prop 65 warning is there to inform California residents about potential exposure to chemicals that the state has identified as causing cancer or reproductive harm. It's a standard notification, but it's always a good idea to check the specific details if you have concerns.

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