Most in-stock items ship same or next business day. Shipping rates shown at checkout.
PRODUCT CODE: AZ-0636
Enhance the functionality and longevity of your caster assemblies with the Durastar 3/8-24" OD x 2-1/4" Zerk Axle. Crafted for precision and durability, this axle is equipped with a built-in Zerk fitting, enabling quick lubrication and reduced maintenance downtime—especially in demanding environments.
Whether you’re replacing an existing component or customizing your caster setup, you can choose between 1/4" or 7/16" nylon insert lock nuts to ensure optimal retention under movement and stress. This combination is perfectly suited for Durastar's 21, 22, and 24 Series casters, delivering smooth performance and structural security across various applications.
From warehouse carts to medical equipment and industrial utility systems, this axle and nut set offers the durability and reliability professionals depend on. Trust in Durastar’s engineering excellence to keep your mobility systems running smoothly.
Upgrade your caster assembly with the Durastar Zerk Axle and Nylon Insert Nut Set — the ideal solution for long-lasting, low-maintenance mobility.
Transparent pricing
All pricing and quantity discounts are applied automatically. No promo codes required and no post-checkout price changes.
Upfront shipping costs
Shipping is calculated by order size and weight. Final shipping costs are shown before payment so there are no surprises.
Business-friendly ordering
We support bulk orders, repeat purchases, and fast quotes for larger or custom requirements.
Real support from product specialists
Need help confirming fit, compatibility, or application? Our team works directly with engineers, maintenance teams, and buyers every day.
Trusted by industrial and commercial customers
CasterHQ supplies casters and wheels for manufacturing, material handling, retail, and distribution environments nationwide.
When will my order ship?
In-stock items typically ship same or next business day. Weekend orders ship Monday or Tuesday unless stated otherwise.
Will shipping cost more at checkout?
Shipping is not free on most orders. Your final shipping cost is shown before payment.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas may take longer.
Some custom products (select Made in USA casters, keyway wheels, drive wheels) are built after purchase and ship on a longer lead time. When applicable, the ship-time estimate is shown on the product page.
Contact us before ordering and we’ll confirm total landed cost upfront. Contact us.
The Durastar 3/8-24" OD x 2-1/4" Zerk Axle is a precision-engineered axle solution designed to enhance the performance and reliability of your caster assemblies. Whether you're outfitting new equipment or replacing worn components, this axle is built to meet the demands of high-performance mobility systems.
Outfitted with a Zerk grease fitting, this axle supports regular lubrication, reducing friction, wear, and overall maintenance costs. Its fine-thread 3/8-24" design ensures a secure, tight fit—ideal for smooth, vibration-free operation in heavy-duty applications.
Customers can select from 1/4" or 7/16" nylon insert lock nuts based on their equipment’s fastening requirements. These nylon-insert nuts resist loosening due to vibration, ensuring long-term stability and safety for industrial carts, warehouse systems, or medical equipment.
This axle is fully compatible with Durastar's 21, 22, and 24 Series casters, making it a dependable solution for maintenance teams and OEM manufacturers alike. From its corrosion-resistant finish to its dependable construction, every feature is developed with durability and performance in mind.
Whether you're upgrading casters for a rugged industrial application or outfitting mobile platforms for critical use, this Zerk axle delivers the strength, serviceability, and secure fit professionals expect from the Durastar name.
$5.00
Trusted by 100,000+ Industrial and Commercial Buyers | 98.7% on-time shipment rate
Designed for engineers, manufacturers, and material handling professionals
