N-100-493-08 Genuine VW/Audi M8 x 20 Hex-Head Bracket Bolt

Genuine VW/Audi M8 x 20 hex-head bracket bolt, part number N-100-493-08. This factory mounting fastener secures the assigned bracket to its mating threaded connection. The hex head provides a wrench engagement surface and the broad bearing section supports the mounting face.

Technical details

• Original part number: N-100-493-08 / N10049308.
• M8 x 20 nominal fastener specification.
• Hex-head combination bolt with broad bearing section, as shown in the original photo.
• Supplied individually. Brackets, separate washers and other hardware are not included.
• Factory references include replacement of N-100-493-03 where the catalog assigns this revision.
• Installation location determines the required torque and assembly procedure; thread size alone does not establish compatibility.

Common reasons to replace

Replace missing hardware or a bolt with damaged threads, severe corrosion, rounded head faces or a deformed bearing surface. Bracket movement can also reveal damaged mating threads or an incorrectly seated connection.

Check the bracket and mounting point before replacing the bolt. A new fastener cannot repair a cracked bracket or stripped threaded hole. In an exhaust application, rattling can also come from hangers, shields and pipe alignment; identify the actual loose connection first.

Installation and service notes

Support the mounted component before removing its hardware. Allow exhaust or cooling components to cool where applicable. Inspect the threads and bracket seating face, then start the replacement bolt by hand.

Use the factory torque specification for the exact bracket and follow any required replacement instructions for adjoining hardware. Do not use the bolt to draw a misaligned bracket into place. Confirm that the assembled component is secure and has the correct clearance.

Fitment

Confirm the original bolt number and mounting location before ordering.