Lippert Components Trailer Wheel Studs — 9/16-18 UNF Press-In, Zinc-Plated 4-Pack (2.31 in)

Lippert Trailer Wheel Studs (4 pack) are zinc-plated, press-in lug studs built for 5,200–7,000 lb axle hubs using 9/16-18 UNF threads, offering a direct-fit replacement for worn or damaged studs.

When a wheel stud fails or corrodes, replacing the stud quickly and correctly restores wheel security and reduces downtime. These genuine Lippert Components studs are manufactured to match common trailer hub specifications and are supplied in a convenient four-pack for routine maintenance or emergency repairs. They deliver corrosion resistance, consistent thread fit, and a knurl/spline design that secures the stud in the hub bore.

How do these studs restore wheel security?

Replacing damaged or rusted wheel studs returns the proper clamping surface for lug nuts, ensuring the wheel is held tight against the hub. The press-in knurl/spline anchors the stud in the hub to prevent rotation during tightening, while the standard UNF thread offers reliable nut engagement.

• 9/16-18 UNF threads for common trailer lug nuts
• 0.617 in knurl/spline to grip the hub bore firmly
• 2.31 in under-head length to match typical hub thicknesses
• Zinc plating for improved rust resistance

Will these studs fit my axle and hub?

These studs are intended for trailer wheel hub assemblies on axles rated between 5,200 and 7,000 pounds that use 9/16-18 UNF press-in studs. Always measure your existing stud thread, knurl diameter, and under-head length to confirm fit before ordering to avoid misfit or installation issues.

• Designed specifically for 5,200–7,000 lb axle applications
• Match thread size: 9/16-18 UNF
• Confirm hub bore accepts a 0.617 in knurl/spline
• Verify 2.31 in under-head length suits your hub thickness

How are these studs installed and what tools are needed?

Installation requires removing the wheel and hub drum or rotor to access the stud bores, then pressing the new stud into the hub so the knurl/spline seats tightly. A hydraulic or arbor press is recommended for consistent, damage-free seating; in-field repairs sometimes use a dedicated lug-stud tool and controlled hammering with a supporting sleeve.

• Remove wheel and hub/drum or rotor to expose bores
• Use a press or lug-stud driver for controlled installation
• Avoid direct hammer blows on the threads to prevent damage
• Torque lug nuts to manufacturer specs after installation and reassembly

What materials and durability features do these studs offer?

Manufactured to industry dimensions, these studs are zinc-plated to resist corrosion common in towing and outdoor environments. The knurl/spline form locks the stud in the hub mechanically, reducing the chance of pull-out under normal load and vibration compared with smooth press-in pins.

• Zinc plating for corrosion resistance in wet or salty conditions
• Knurl/spline design prevents stud rotation and pull-out
• Threaded 9/16-18 UNF for secure lug nut engagement
• Sold in a 4-pack for axle wheel positions or spare stock

Who is this for: These Lippert studs are intended for trailer owners, fleet operators, and RV technicians who need reliable replacement wheel studs for 5,200–7,000 lb axles using 9/16-18 UNF press-in studs. They suit anyone looking to keep trailers roadworthy with OEM-compatible fasteners that simplify maintenance, reduce corrosion concerns, and restore correct wheel clamping. Always verify measurements and axle ratings before purchase to ensure proper fit and safe operation.