
S3 rear disc retaining screw
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S3 rear disc retaining screw
Anyone know where to source these? I'm missing a couple ... legacy from swapping out the diff for a torsen. I should really renew all four.


1985 Sunrise Red S3 TWR
2006 Mercedes CLK 280 Sport AMG
2006 Mercedes CLK 280 Sport AMG
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Re: S3 rear disc retaining screw
Mazdatrix do them Dave. You might be able to get them from a main dealer or measure them and search screw suppliers.
Met Blue Series 2 Elford Turbo
S3 Rally Car (Done - Motorsport UK Passport issued !)
S3 Rally Car (Done - Motorsport UK Passport issued !)
- DKWW2000
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Re: S3 rear disc retaining screw
Dave, I have a good supply of Stainless screws if you let me know the thread/pitch I can bring some on Sunday?
RX7 FB S3 - RX7 FC TII Vert
Rotaries Previously Owned:-
2 x NSU Ro 80s - 2 x S2 RX7s - Suzuki RE 5 - DKW(Hercules) W2000 - Norton (Krauser) Commander
Rotaries Previously Owned:-
2 x NSU Ro 80s - 2 x S2 RX7s - Suzuki RE 5 - DKW(Hercules) W2000 - Norton (Krauser) Commander
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Re: S3 rear disc retaining screw
Yes, these strip very easily and I have had to use impact screwdrivers to get them out. I have bought replacements from Mazda in the past. The correct part number is 9983-10-816 - currently list price on an US based site I use is US$1.25 each. Same part as FC and FD rear brakes as well as FD and RX8 front brakes. It is also a current part used on Mazda 2, 6, CX7, CX9, etc so should be readily available.
This part is only for series 3 rear ventilated discs NOT the s2 solid rotors (which use a button screw that is NLA).
Mazdatrix lists 9983-10-820 but this is for FC and FD front brake rotors. It probably still fits but could be a different length.
This part is only for series 3 rear ventilated discs NOT the s2 solid rotors (which use a button screw that is NLA).
Mazdatrix lists 9983-10-820 but this is for FC and FD front brake rotors. It probably still fits but could be a different length.
http://www.AusRotary.com
My AusRotary build log: http://ausrotary.com/viewtopic.php?f=21&t=89142
My RX7FB build log: http://rx7fb.com/viewtopic.php?f=4&t=3348
WTB: s3 grey gear boot and gear knob: http://rx7fb.com/viewtopic.php?f=19&t=3424
My AusRotary build log: http://ausrotary.com/viewtopic.php?f=21&t=89142
My RX7FB build log: http://rx7fb.com/viewtopic.php?f=4&t=3348
WTB: s3 grey gear boot and gear knob: http://rx7fb.com/viewtopic.php?f=19&t=3424
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Re: S3 rear disc retaining screw
From what I understand these aren't actually needed and just hold the disc on while you have a wheel off?



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Re: S3 rear disc retaining screw
The screws are M8 x 1.25 pitch, screw length 12mm, overall length 15mm, head looks to be 45 degrees.
Hope that helps ?
Hope that helps ?
Met Blue Series 2 Elford Turbo
S3 Rally Car (Done - Motorsport UK Passport issued !)
S3 Rally Car (Done - Motorsport UK Passport issued !)
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Re: S3 rear disc retaining screw
RX7 FB S3 - RX7 FC TII Vert
Rotaries Previously Owned:-
2 x NSU Ro 80s - 2 x S2 RX7s - Suzuki RE 5 - DKW(Hercules) W2000 - Norton (Krauser) Commander
Rotaries Previously Owned:-
2 x NSU Ro 80s - 2 x S2 RX7s - Suzuki RE 5 - DKW(Hercules) W2000 - Norton (Krauser) Commander