Wheel Attachment Hardware
For conditions noted, also check condition of wheel stud holes. CAUTION: Proper lug nut torque is essential. Follow manufacturer's torque specifications and tightening sequence. Monroe® recommends the use of a "click" type torque wrench or torque stick. DO NOT lubricate threads unless specified by the vehicle manufacturer.
| Condition |
Code |
Procedure |
| Bent |
A |
Require replacement |
| Broken |
A |
Require replacement |
| Some manufacturers require replacement of all studs on any wheel if two or more studs or nuts on the same wheel are broken or missing. |
|
|
| Loose |
A |
Require repair or replacement of affected component |
| Lug nut flats rounded |
A |
Require replacement of nut |
| Lug nut installed backward |
B |
Require repair |
| Lug nut mating surface dished |
A |
Require replacement of nut |
| Lug nut mating type incorrect |
B |
Require replacement of nut |
| Lug nut seized |
A |
Require replacement of nut and/or stud |
| Stud incorrect |
B |
Require replacement of stud |
| Threads damaged |
A |
Require repair or replacement of component with damaged threads |
| Threads stripped (threads missing) |
A |
Require replacement of component with stripped threads |
 |
| Legend |
| A |
Part no longer performs intended purpose |
| B |
Part does not meet a design specification (regardless of performance) |
| C |
Part is missing |
| 1 |
Part is close to the end of its useful life (just above discard specifications, or weak; failure likely to occur soon, etc.) |
| 2 |
To address a customer need, convenience, or request (to stiffen ride, enhance performance, eliminate noise, etc.) |
| 3 |
To comply with maintenance recommended by the vehicle’s Original Equipment Manufacturer (OEM) |
| 4 |
Technician’s recommendation based on substantial and informed experience |
|
