EZ Loader Screw-In Lug Stud 1/2"-20 x 2" Grade 8 Old Body Style 290-028828

EZ Loader Screw-In Lug Stud 1/2"-20 x 2" Grade 8 Old Body Style 290-028828

Old Style Hub Fastener

The EZ Loader Screw-In Lug Stud 290-028828 is a brass screw-in wheel stud used on select older EZ Loader threaded trailer hubs. This old body style lug stud measures 1/2"-20 x 2" and is designed for hub applications that use threaded screw-in studs rather than modern press-in wheel studs or standard lug bolts.

This part is different from the EZ Loader 1/2" lug bolt 290-031573. A screw-in lug stud threads into the hub and then uses a separate lug nut to secure the wheel. A lug bolt, by comparison, has the hex head built into the fastener and threads through the wheel directly into the hub.

Built from Grade 8 Metal with gold appearance, this fastener is commonly associated with older EZ Loader hub designs. Proper identification matters because older threaded hubs can use different wheel fastening styles, and the wrong fastener may damage the hub threads or fail to secure the wheel correctly.

Key Features

• Replacement screw-in lug stud for select older EZ Loader threaded hubs
• 1/2"-20 thread size
• 2" overall length
• Brass old body style construction
• Used with a compatible lug nut to secure the trailer wheel

Important Difference: Lug Stud vs. Lug Bolt

This part is a screw-in lug stud, not a standard lug bolt.

A screw-in lug stud threads into the trailer hub first. The wheel then installs over the stud and is secured with a separate lug nut. A lug bolt has the head built into the fastener and threads directly through the wheel into the hub.

Ordering the wrong style can cause installation problems or hub thread damage. Always compare your existing fastener before ordering.

Typical EZ Loader Trailer Applications

This part is commonly used on older EZ Loader trailer hub assemblies that use threaded screw-in lug studs. These older hub designs are different from modern hubs that use press-in wheel studs or direct-thread lug bolts.

Because EZ Loader hub styles changed over the years, fitment should be confirmed by checking the existing fastener, thread style, hub design, and wheel mounting setup.

Installation Considerations

• Confirm your hub uses screw-in lug studs before ordering.
• Inspect the hub threads for corrosion, galling, cross-threading, or prior damage.
• Start the stud carefully by hand to avoid damaging the threaded hub.
• Use the correct matching lug nut for your wheel and hub setup.
• Do not substitute this part for a press-in stud or standard lug bolt.

Fitment Guidance

This is not a universal trailer wheel fastener.

• Confirm the existing fastener is a screw-in lug stud.
• Confirm the thread size is 1/2"-20.
• Confirm the stud length is 2".
• Confirm the hub is an older threaded hub style.

Questions or Need Help Matching Parts?

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📞 Call us — we answer the phone and help you get it right.
📧 Send photos if needed — often the fastest way to confirm fitment.

We focus on matching parts correctly the first time.

Real-World Insight

Older trailer hubs can be difficult to identify because owners may describe the same part as a lug stud, lug bolt, wheel bolt, or hub stud. The key difference is how the wheel is fastened. If your trailer uses a screw-in stud with a separate lug nut, this old body style stud may be the correct replacement. If your trailer uses a hex-head bolt that passes through the wheel and threads into the hub, you likely need a lug bolt instead.

What to Have Ready When You Call

• Trailer year, make, and model
• VIN, if available
• Existing fastener style: screw-in stud, lug bolt, or press-in stud
• Thread size and stud length
• Photos of the hub, wheel, and existing fastener