Description

Overview

The McGrath wheel nut secures matching 5-spoke wheel hardware with a 5/8″-11 UNC thread, 28mm A/F hex and 19mm height. Those dimensions distinguish it from other 5/8″ trailer wheel nuts that use a different body size or wheel-end arrangement.

Features

• 5/8″-11 UNC thread for matching McGrath wheel hardware
• 28mm across-flats hex for tool and fitment identification
• 19mm overall height

Specifications and Materials

Thread: 5/8″-11 UNC. Across flats: 28mm. Height: 19mm.

Part number: AP6007.

Review the SAE commercial vehicle fixing nut guidance

Compatibility and Fitment

Compare the 5/8″-11 thread, 28mm hex and 19mm height before ordering. A 5/8″ nut with the wrong thread pitch or body dimensions can look similar but will not match the intended McGrath wheel-end hardware.

Equivalent or replacement numbers: ZWT6004, FL53.9602A.

Related Parts

Compliance and Safety

Inspect the nut and stud threads for damage, then confirm full thread engagement and tighten the wheel hardware to the applicable axle or wheel procedure.

Trailer Applications

Workshops fit this nut during McGrath 5-spoke trailer wheel-end repairs where the existing hardware matches the 5/8″-11 thread and 28mm A/F profile.

Cross-reference and Suitability

This part cross-references to the following equivalent or replacement part numbers:

Why Choose ICS Trailers

McGrath wheel hardware can be easy to confuse with other 5/8″ trailer fasteners, so the thread pitch, 28mm A/F and 19mm height need to line up with the removed nut. ICS Trailers can compare measurements, old markings and wheel-end photos when the original hardware is worn or difficult to identify.

• Check the matching stud and surrounding wheel-end hardware during the same repair.
• Use old part markings or cross-reference numbers to narrow down close-looking variants.

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