Description
x5/8 Inch 6061-T6 Aluminum Round Bar, Solid 16mm Rod Stock
The 5/8 inch 6061-T6 aluminum round bar from RapidKeen is a solid 16mm-class aluminum rod for medium-duty shafts, bushings, and pivot assemblies. Heat treated to the T6 temper, this 6061 aluminum rod adds cross section and stiffness over a half-inch bar while staying quick to turn, mill, and thread. Order this 5/8 inch aluminum bar stock by the foot or have it cut to your exact length.
Every length of 5/8 inch aluminum round bar is solid stock — never tube — and arrives ready for stepped turning, boring, drilling, tapping, and fabrication. Buy one cut piece for a repair pin or order production quantities of 6061 rod for a recurring shaft part.
Diameter5/8 inch (16mm), solid round cross section
Alloy & Temper6061-T6, solution heat treated and artificially aged
FormSolid round bar / round rod, never hollow tube or pipe
LengthBy the foot, 1–6 ft stock lengths, or cut to length
About 5/8 Inch 6061-T6 Aluminum Round Bar
At 5/8 inch (16mm) in diameter, this size fills the gap between the popular 1/2 inch and 3/4 inch rods. It carries more load than a half-inch bar and leaves more material for shoulders, stepped profiles, bored holes, and threaded ends — yet it still runs cleanly on standard lathes and mills. The T6 temper gives this 6061 aluminum round bar dependable tensile strength, good stiffness for rotating shafts and pivot pins, and strong resistance to outdoor and marine corrosion. As a standard fractional size, 5/8 inch 6061 rod lines up with common brackets, bosses, clevis mounts, and replacement hardware on American machinery.
What This Size Is Used For
Shafts & roller shaftsBushings & sleevesCouplings & adaptersPivot & hinge pinsClevis & hitch pinsSpacers & standoff columnsFixture posts & locatorsLever arms & handlesSmall cylinder rodsMachinery linkages
Why Shops Keep 5/8 Inch 6061 Rod in Stock
- Extra cross section over 1/2 inch for stiffer pins, posts, and shafts
- Enough stock to turn steps, shoulders, and threaded ends in one setup
- T6 temper keeps strength up in rotating and pivoting parts
- Turns, mills, drills, taps, and welds with predictable results
- Anodizes cleanly and resists outdoor and marine corrosion
Machining, Welding & Finishing
5/8 inch 6061-T6 aluminum round bar machines with light, continuous chips and a clean surface, and it drills, taps, and threads without built-up edge. It welds well by MIG or TIG with 6061 or 4043 filler, keeping in mind that welding locally lowers T6 strength near the weld. For visible parts, this 16mm aluminum bar stock takes bead blasting, brushing, polishing, powder coating, and clear or colored anodizing with even, repeatable results.
Ordering & Cut Length
Order this 5/8 inch 6061 aluminum rod by the foot, choose a standard stock length, or enter a custom cut length to match your drawing. Every piece of 6061 aluminum round bar is cut square to length with a clean, dent-free surface, so it arrives ready to fixture and machine. Single pieces and production quantities are both available on this stocked diameter.
Quick Questions
Is this 5/8 inch 6061-T6 aluminum round bar solid? Yes. Every piece is a solid round rod, not hollow tube or pipe.
Why is a 16mm label shown? The product is built around the US 5/8 inch size and carries a 16mm metric label for buyers working from metric drawings; confirm the diameter your drawing requires before ordering.
5/8 inch or 3/4 inch? Choose 5/8 inch for lighter pivots and pins; step up to 3/4 inch when the part needs more stiffness, deeper boring, or a heavier threaded end.
Shipping & Lead Time
In-stock, standard 5/8 inch 6061-T6 aluminum round bar is prepared and shipped within 1–5 business days.
Custom-cut or processed orders require extra time based on processing complexity; the exact lead time depends on the size and quantity ordered.
After shipment, delivery to US addresses typically takes 7–15 days, and a tracking number is provided as soon as the order leaves our warehouse.
For stiffer pins, pivots, and stepped shaft parts, the 5/8 inch 6061-T6 aluminum round bar is a dependable solid 16mm rod stock — cut to length and ready to machine.
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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