Description
Midland Bronze Hex Locknut
Midland Bronze Hex Locknuts provide a durable threaded fastening solution for securing compatible threaded pipe, conduit, fittings, and related components in plumbing, commercial, industrial, and mechanical installations.
Manufactured from high-quality bronze, these locknuts feature precision-machined internal threads and a hexagonal exterior that provides positive wrench engagement for controlled tightening and removal.
Product Highlights
- High-quality bronze construction
- Hex locknut configuration
- Female threaded connection
- Hex exterior for positive wrench engagement
- Precision-machined threads
- Excellent corrosion and wear resistance
- Designed to secure compatible threaded components
- Suitable for plumbing, commercial, industrial, and mechanical applications
- Available in multiple nominal sizes
- Manufactured by Midland Industries
Technical Specifications
| Product Type | Hex Locknut |
|---|---|
| Brand | Midland |
| Material | Bronze |
| Connection Type | Female Threaded |
| Body Style | Hexagonal |
| Primary Function | Securing Compatible Male-Threaded Components |
| Installation Method | Wrench Tightened |
| Primary Feature | Integral Hex Wrenching Surface |
| Available Sizes | Multiple Nominal Sizes |
| Typical Applications | Plumbing, Commercial, Industrial, Mechanical, and General Threaded Assemblies |
Locknut Configuration
Internal Threads
The internal threaded opening engages a compatible male-threaded pipe, fitting, conduit, or related component.
Hex Body
The hexagonal exterior provides flat wrenching surfaces for controlled tightening and removal using standard hand tools.
Locking Function
The locknut is designed to tighten against the mating surface or component to help secure the threaded assembly in position.
Construction Details
Midland Bronze Hex Locknuts are manufactured from durable bronze to provide dependable mechanical strength, corrosion resistance, and long service life in demanding environments.
Precision-machined internal threads promote consistent engagement with compatible male-threaded components.
The integral hex profile provides a dedicated wrenching surface, allowing the locknut to be tightened or removed without gripping directly on the threaded component.
Why Choose a Bronze Hex Locknut?
Secure Threaded Fastening
- Designed to secure compatible threaded components
- Provides a compact fastening method
- Suitable for installation and repair work
- Useful for threaded piping assemblies
- Available in multiple nominal sizes
Bronze Construction
- Excellent corrosion resistance
- Dependable mechanical strength
- Good resistance to wear
- Suitable for demanding environments
- Designed for long-term service
Hex Wrenching Design
Positive Tool Engagement
The flat sides of the hex body provide reliable contact with an appropriately sized wrench for controlled installation and removal.
Controlled Tightening
Use appropriate tools and installation torque for the application, taking care not to overtighten or damage the locknut or mating threads.
Typical Applications
Plumbing & Mechanical
- Threaded pipe assemblies
- Mechanical equipment connections
- Fitting retention
- Maintenance and repair
- General threaded installations
Commercial & Industrial
- Industrial piping assemblies
- Commercial mechanical systems
- Equipment mounting connections
- Utility installations
- General-purpose threaded fastening
Size Selection
Midland Bronze Hex Locknuts are available in multiple nominal sizes.
Confirm the required thread size and verify compatibility with the mating male-threaded component before ordering.

Our pipe and fitting specialists can help review your required thread size, mating component, installation method, system environment, and material compatibility before you order.
Email the GetPipe.com Team Visit Quick SupportFrequently Asked Questions
What is a hex locknut?
A hex locknut is an internally threaded fastening component designed to tighten onto a compatible male-threaded component and help secure the assembly in position.
What material is this locknut made from?
It is manufactured from bronze.
Why does it have a hexagonal exterior?
The hex body provides flat wrenching surfaces for controlled tightening and removal using standard hand tools.
What does the locknut connect to?
It threads onto a compatible male-threaded pipe, fitting, conduit, or other component of the matching size and thread specification.
Why choose bronze?
Bronze provides dependable mechanical strength along with excellent resistance to corrosion and wear in compatible applications.
Is thread sealant always required?
Not necessarily. Thread sealant should only be used when required by the application or installation method.
Can I tighten it with a standard wrench?
Yes. The hexagonal exterior is designed to provide wrench engagement for installation and removal.
Are multiple sizes available?
Yes. The supplied product information indicates that Midland bronze hex locknuts are available in multiple nominal sizes.
Should the locknut be overtightened?
No. Excessive tightening can damage the locknut, mating threads, or connected component.
What should I verify before ordering?
Confirm the required thread size, mating component, material compatibility, installation method, and any applicable system requirements.
Important Ordering & Installation Notes
- This listing is for Midland Bronze Hex Locknuts.
- Verify the required nominal thread size before ordering.
- Confirm the mating component uses compatible male threads.
- Use the hex exterior for wrench engagement during installation and removal.
- Select a properly sized wrench to avoid damaging the locknut.
- Avoid excessive tightening that could damage the locknut or mating threads.
- Use thread sealant only when required by the specific application.
- Verify bronze is compatible with the intended installation environment.
- Inspect the threads for damage or contamination before assembly.
- Ensure the locknut threads smoothly onto the mating component before final tightening.
- Do not force mismatched or damaged threads together.
- Check the completed assembly for proper seating and secure engagement.
- Pipe, fittings, conduit, washers, and other hardware are sold separately unless otherwise specified.
- Follow applicable plumbing, piping, or installation requirements.
- Install according to Midland manufacturer recommendations.