The bolt itself:
- conical seat
- 12mm socket head
- threads are ~28mm long
- stamped 14 x 1.5
Was on a 2018 RS3 (canadian spec imported to usa). Thought it was all stock but maybe not?
See pics:
https://imgur.com/MXOve4T



'18 RS3 Glacier White: DS1 Stg 2 | Wagner EVO1 IC | 034 4" Turbo Inlet | 034 4" Intake
'05 S4 Avant Brilliant Red: JHM Tune | JHMv1 Headers | Fast Intentions Catback | Ported IM & Spacers | JHM LWCP | JHM ATF Cooler | Thor Skid Plate | Koni Yellows | Apikol Rear Diff | JHM LW Rotors | AudioQ 1200D w/Dual 10" CVRs
2017 A3 P+, EQT Stage 2 (e85) & EQT DSG Tune, Autotech HPFP Internals, Drop In Filter/Removed Snow Grate, NGK Racing Spark Plugs, CTS Catted Downpipe, Carbon Fiber Ebay Duckbill Spoiler, Gloss Black Ebay Lip, 245/35r19 Firehawk Indy 500's on 19x9 et40 Neuspeed RSe10's, Custom Sound Quality Focused Stereo
2015 S3 with 210,000 miles with new 2019 Q5 motor. Still going!
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