Hi all
Did research into what size etc, pulled up parts diagram from BMW.
Anyhow, said I needed M8 x 30 torx screws. But upon replacing the rusty ones, they are actually M8 x 40.
They screw in about 12mm. Would they be safe to use or would you advice getting the 40mm ones?
Cheers
Brake calliper torx screws 2010 model
Brake calliper torx screws 2010 model
Motorbiking is a life, not a hobby. Ride with Pride.
Re: Brake calliper torx screws 2010 model
Sounds like you've got just over 50% of the engagement you should have, buy the 40mm ones. Caliper mounts seem an area to play safe. Don't forget the correct grade, I've no idea what they should be 8.8??
Re: Brake calliper torx screws 2010 model
RealOEM shows 30mm bolts, and that's what I'd be using - it might not be 'safe' to assume that the removed 40mm ones are correct!
Pete
Pete
- David.
- Subscriber
- Posts: 8429
- Joined: Fri Nov 07, 2014 7:29 pm
- Location: North Yorkshire
- Bike Model and Year: R1200RT (Camhead) 2012
- Been liked: 413 times
Re: Brake calliper torx screws 2010 model
TORX BOLT - M8X30-10.9-SI
Last edited by David. on Fri May 24, 2019 4:04 pm, edited 1 time in total.
Re: Brake calliper torx screws 2010 model
Thanks guys.
I was curious why mine had 40mm. Also my old ones have a stop thread about 12mm from end.
Thanks for confirming they are 30mm. So they just seem to screw in 12mm.
I have no idea about grade, where can I find the grade from?
I was curious why mine had 40mm. Also my old ones have a stop thread about 12mm from end.
Thanks for confirming they are 30mm. So they just seem to screw in 12mm.
I have no idea about grade, where can I find the grade from?
Motorbiking is a life, not a hobby. Ride with Pride.
Re: Brake calliper torx screws 2010 model
As per David's reply above, the correct bolts are 10.9-SI. The 10.9 is the spec relating to the strength of the bolt, and I think SI just means that '10.9' is measured using an international system of units.
If in doubt, buy the genuine bolts from BMW....they'll be absolutely 100% the right ones!
Pete
If in doubt, buy the genuine bolts from BMW....they'll be absolutely 100% the right ones!
Pete
Last edited by milleplod on Thu May 30, 2019 7:46 am, edited 1 time in total.
Re: Brake calliper torx screws 2010 model
Ahhh that clears it up. Thanks All. Much appreciated
Motorbiking is a life, not a hobby. Ride with Pride.