SAME DAY SHIPPING
— Order by 2pm EST.
Toggle Nav
Cart
Search
main product photo

08 BULKHD LOCK NUT

Ask A Question

Description & Features

This bulkhead lock nut is designed to provide robust and reliable connections in various industrial settings. It features a 3/4-16 thread and is made from straight steel ensuring durability and long-lasting performance.

The male JIC SAE 37 degree flare connection meets SAE J514 specifications making it compatible with industry-standard fittings. With an overall length of 0.310 mm and a C hex size of 1.000 mm this lock nut offers precise and secure fastening.

Manufactured by Brennan Industries Inc this component is part of the 0306 series and is suitable for use in demanding applications. The PROP-65 warning applies to California residents.

Supplier Part Number: 0306-08

Specifications

Connection Size 1
1/2 in
Connection Type
JIC
Connection Type 1
SAE 37 deg JIC
Dimension Standards
SAE J514
Dimensions
0.31 in W
Finish
Trivalent Zinc-Plated
Fitting Type
Locknut
Hex Size
1 x 1 in
Material
Steel
Material Construction
12L14/C1045 Steel
Series
0306 Series
Thread Size
3/4-16
Tube OD
1/2 in
Tube Outside Diameter
1/2 in

Product Questions & Answers (2)

Sign In Hover me Please sign in to submit a question
Question by: Bonnie W on Apr 19, 2025, 11:02 AM
What size wrench do I need for this lock nut?
Answer by: Customer Support on Apr 20, 2025, 7:31 PM
The C hex size on this bulkhead lock nut is 1.000 mm, so that's the wrench you'll need.
Question by: Larry H on Oct 26, 2025, 8:24 AM
what thread size does this bulkhead lock nut run? trying to match it up with existing fittings on my system
Answer by: Customer Support on Oct 27, 2025, 12:12 PM
It runs a 3/4-16 thread with a male JIC SAE 37 degree flare connection, sized for 1/2 inch tube OD. That configuration follows SAE J514 specs, so it'll line up with any standard JIC fittings built to that same spec.

Tell us what you need and we'll get back to you.

Fields marked * are required.