Description
xBrass Hex Bar
Solid six-sided brass hex bar and hexagonal brass rod with flat wrench-grip faces — measured across flats and supplied in straight lengths or cut to length for nuts, bolts, fittings, fasteners and CNC turned parts.
Six-Sided Hex Stock
Across Flats
Wrench-Grip Faces
Straight or Cut Lengths
Free-Machining Brass
What Is Brass Hex Bar?
Definition and Overview
Brass hex bar is a solid, straight metal bar with a regular hexagonal cross-section — six equal flat faces running its full length. It is produced by extrusion or drawing and is also called brass hex rod, hexagonal brass bar, hex brass bar, six-sided brass bar or brass hex stock. It is measured across flats, the distance between two opposite flat faces.
The hexagonal shape is deliberate: the flat faces give a wrench or spanner a positive, non-slip grip and stop the part from rotating in a fitting or chuck. This is why brass hex bar is the standard starting material for turned fasteners, nuts, bolts, valve stems and connector bodies. It turns, drills, taps and threads exceptionally cleanly on CNC and automatic lathes, with the warm golden finish and natural corrosion resistance brass is known for.
Key Characteristics of Brass Hex Bar
- Six flat grip faces: the hexagonal section gives a secure wrench grip and prevents rotation in fittings.
- Excellent turning: brass hex rod machines fast and cleanly on automatic and CNC lathes for high-volume parts.
- Measured across flats: hex bar is specified by its across-flats dimension in millimetres or inches.
- Natural corrosion resistance: copper-based brass hex stock does not rust in normal atmosphere.
- Attractive finish: the flat faces polish to a clean, premium golden surface for visible hardware.
- Good conductivity: hexagonal brass bar serves for terminals, connectors and electrical fittings.
Why Choose Brass Hex Bar?
Brass hex bar combines a wrench-ready six-sided section with fast, clean machining — the natural choice for turned fasteners and fittings.
Fast Turning
Brass hex rod turns, drills and taps quickly with low tool wear for volume production.
Wrench Grip
Six flat faces let a spanner grip the part without slipping or rounding off.
Anti-Rotation
The hex section seats without spinning in fittings, chucks and assemblies.
Corrosion Resistant
Hexagonal brass bar resists rust and moisture in plumbing and outdoor use.
Clean Finish
Flat hex faces polish neatly for visible nuts, fittings and decorative hardware.
Conductive
Brass hex stock works for terminals, connector bodies and electrical fittings.
Hygienic Surface
The copper-based surface naturally limits microbial build-up on touch hardware.
Recyclable
Brass hex bar is fully recyclable without losing its properties.
Brass Hex Bar Sizes, Tempers & Finishes
Brass hex bar is specified by its across-flats dimension and supplied in straight lengths, cut to length on request.
Standard Size Range
| Product | Dimension | Lengths | Custom Cutting |
|---|---|---|---|
| Brass Hex Bar / Brass Hex Rod | Across flats, in a range of metric and inch sizes | 1 ft, 3 ft, 6 ft, 12 ft straight lengths | Yes — cut to your length |
Hex Section and Faces
Each brass hex bar has six equal flat faces meeting at even corners, giving a consistent across-flats dimension all along the bar. This regular section feeds smoothly through automatic lathes and collets for repeatable turned parts.
Tempers
Half-hard hex bar is the usual balanced default for machining fasteners and fittings; soft hexagonal brass rod forms more easily when secondary bending is needed, while hard hex stock gives the stiffest result for straight drive components.
Surface Finishes
As-Drawn / Mill
Standard smooth mill finish, uniform and ready for CNC turning.
Polished
Mirror-bright polished hex faces for visible fittings and hardware.
Brushed / Satin
Directional brushed finish that hides fingerprints and looks refined.
Typical Material Properties
- Density: approximately 8.4–8.5 g/cm³ for typical brass.
- Melting range: approximately 900–940°C (1650–1720°F).
- Electrical conductivity: roughly 25–45% IACS depending on composition.
- Thermal conductivity: roughly 80–120 W/(m·K) at room temperature.
- Machining behaviour: turns cleanly into short chips, ideal for automatic-lathe fastener production.
Round, square and flat brass bar are available separately; this page covers the six-sided brass hex bar form.
Machining & Fabrication with Brass Hex Bar
Brass hex rod is one of the most efficient materials for CNC and automatic-lathe production of fasteners and fittings.
How Brass Hex Bar Is Worked
Hexagonal brass bar feeds through collets and bar feeders to be turned, faced, drilled, bored, threaded and tapped into finished components. The six flat faces stop the stock spinning while external features are cut, and the finished part keeps ready-made wrench flats without extra milling. Brass hex stock also solders and brazes cleanly and polishes after machining.
Working Tips for Brass Hex Stock
- Specify across flats clearly so the hex section matches the spanner or fitting size.
- Use sharp turning tools for short, clean chips and a bright surface on brass hex rod.
- Match collet size to the across-flats dimension for steady bar feeding.
- Leave the hex faces as wrench flats instead of milling them round where grip is needed.
- Prefer brazing or soldering for the cleanest joints in hexagonal brass bar.
Common Machined Forms
Nuts and bolts, threaded inserts and standoffs, valve stems, pipe and hose fittings, couplings and connector bodies, terminals, drive plugs and a wide range of CNC turned parts all begin as brass hex bar.
Applications of Brass Hex Bar
Brass hex bar is the go-to stock wherever a turned part needs wrench flats, anti-rotation seating or clean brass machining.
Nuts & Bolts
Hex nuts, bolt heads, threaded fasteners and inserts turned from brass hex rod.
Threaded Parts
Standoffs, spacers, studs, nipples and threaded fittings with ready wrench flats.
Valve Stems
Valve stems and plugs whose hex end is turned or gripped by a spanner.
Couplings & Connectors
Coupling nuts, adapter bodies and connector fittings machined from hex stock.
Plumbing Fittings
Pipe and hose fittings, compression parts and plumbing hardware in corrosion-resistant brass.
CNC Turned Parts
High-volume automatic-lathe components that benefit from fast, clean brass turning.
Tool Handles & Drives
Drive plugs, set screws, adjustment keys and grip ends using the hex section.
Electrical Terminals
Terminal bodies, connector posts and grounding fittings combining grip and conductivity.
Marine Hardware
Boat fittings and salt-air hardware that rely on brass's corrosion resistance.
How Brass Hex Bar Is Made
Brass hex bar follows a controlled process to deliver a true, even six-sided section.
1
Melting
Copper and zinc are melted and blended to the target brass composition.
2
Casting Billets
The brass is cast into solid billets ready for hot forming.
3
Extrusion
Billets are extruded through hexagonal dies to form the six-sided profile.
4
Cold Drawing
The hex rod is drawn to final across-flats size and a smooth surface.
5
Inspect & Cut
Each brass hex bar is straightened, checked and cut to length.
Quality Control at Every Stage
In-Process and Final Checks
Across-flats dimension, evenness of the six faces, straightness and surface are monitored throughout production, and each finished brass hex bar receives a final check of size, length, face and finish before cutting and packaging, so every length of hexagonal brass stock feeds and machines consistently.
Value-Added Services for Brass Hex Bar
Beyond raw brass hex bar, secondary processing delivers pieces ready for assembly.
Cut to Length
Brass hex bar cut to your exact length as ready-to-feed pieces.
CNC Turning
Turning, facing and boring of brass hex rod into finished parts.
Threading & Tapping
External threads and tapped holes in hexagonal brass bar fittings.
Drilling & Milling
Holes, bores, slots and flats machined into brass hex stock.
Polishing
Buffing, polishing and satin finishing of the six hex faces.
Custom Packaging
Bundled, wrapped or crated hex bar with clear labeling.
Quality Assurance for Brass Hex Bar
Our Commitment
Every length of brass hex bar is backed by consistent process controls from incoming stock to final shipment. Hexagonal brass bar is drawn from reputable mills and kept fully traceable, so the hex stock you receive feeds, turns and threads repeatably in production.
Documentation
Brass hex bar can be supplied with certificates of compliance and material test reports for composition and properties, supporting traceability and standard conformance for your quality records.
Checks Performed
- Compositional verification of the brass
- Across-flats dimension inspection of each bar
- Evenness check of all six hex faces
- Straightness check over the full length
- Surface quality and finish inspection
- Length verification on cut-to-length stock
- Temper confirmation for machining or forming
- Packaging integrity before dispatch
Packaging, Shipping & Returns
Secure Packaging
- Bundled bars: multiple brass hex rods banded with edge protection to prevent scuffing.
- Individual wrapping: polished or decorative hexagonal brass bar is wrapped to protect the faces.
- Wooden crating: long or heavy hex stock is braced in crates for safe transit.
- Clear labeling: each pack is marked with across-flats size, length, temper and quantity.
Shipping & Delivery Time
Processing: in-stock standard brass hex bar orders are dispatched within 1–5 business days. Custom-cut or made-to-order hex stock needs extra processing time that increases with fabrication difficulty.
Transit: after the order ships, delivery normally takes 7–15 days.
Custom Order Returns
Custom brass hex bar is cut or processed to your exact dimensions. Once cutting or fabrication has started, a custom order cannot be cancelled, returned or exchanged — please confirm across-flats size, temper and length before ordering.
Frequently Asked Questions About Brass Hex Bar
What is brass hex bar used for?
Brass hex bar is mainly turned on CNC and automatic lathes into nuts, bolts, threaded fasteners, valve stems, couplings, plumbing fittings, connector bodies, terminals and a wide range of turned parts. Its six flat faces provide wrench grip and stop the part rotating in an assembly.
What is the difference between brass hex bar and brass hex rod?
The terms are used interchangeably for the same six-sided material. Smaller across-flats sizes are often called brass hex rod and larger sizes brass hex bar — both are hexagonal stock measured across flats.
How is brass hex bar measured?
It is measured across flats — the distance between two opposite flat faces — in millimetres or inches. This matches the way a spanner size is defined and differs from round bar, which is measured by diameter.
Why choose a hexagonal shape instead of round?
The six flat faces give a wrench or spanner a positive grip and prevent the finished part from rotating in a fitting. For nuts, bolts and connector bodies that must be tightened by hand or tool, brass hex bar provides ready-made wrench flats without extra milling.
Can brass hex bar be cut to length?
Yes. Hexagonal brass bar is supplied in standard straight lengths and can be cut to your exact length as ready-to-feed pieces for the lathe, reducing setup time and scrap.
When should I use hex bar instead of round bar?
Choose brass hex bar when the finished part needs external wrench flats, anti-rotation seating or a hexagonal head — such as nuts, bolts and fitting bodies. Choose brass round bar when the part is fully cylindrical, such as pins, shafts and plain rods.
Can brass hex bar be threaded and tapped?
Yes. Brass hex rod threads and taps very cleanly, which is why it is widely used for threaded fasteners, standoffs, inserts and fittings with internal or external threads.
Can brass hex bar be bent?
Yes, especially in soft temper, though hex bar is usually chosen for turning rather than bending. If a part must be bent, use soft hexagonal brass rod with suitable tooling and an adequate bend radius to protect the faces.
Is brass hex bar suitable outdoors or for plumbing?
Yes. Brass hex stock resists atmospheric and moisture corrosion and does not rust, making it a long-standing choice for plumbing fittings and outdoor or marine-adjacent hardware.
What is the difference between brass and bronze hex bar?
Brass hex bar is copper-zinc based, fast and clean to machine, bright golden and lower cost. Bronze hex bar is copper-tin based, generally harder and more wear-resistant but pricier and less free-machining. Choose by the application.
Can brass hex bar be welded or soldered?
Brass hex stock solders and brazes very cleanly, which is the preferred joining method. Fusion welding is possible but needs care because of the zinc content at high temperature.
Are material test reports available?
Yes. Material test reports and certificates of compliance can be provided with brass hex bar orders for composition, properties and traceability in your quality records.
Shipping & Return
xReturns Policy
You may return items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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