Replacing my front shock, the bottom bolt is beyond further use. I can make a replacement out of stainless - but does anyone know if it's high tensile?
Front shock, bottom bolt - what's it made of?
- Thread starter MikeG
- Start date
i would have thought so, bearing in mind it's rather stressed location.
aren't all cap head bolts HT anyway?
aren't all cap head bolts HT anyway?
Purchase the oem part.
What is knackered about it ?
It will be a high tensile steel bolt, most likely a couple of pounds from BMW.
It's not advisable to use stainless steel in high tensile or shear-plane applications.
It will be a high tensile steel bolt, most likely a couple of pounds from BMW.
It's not advisable to use stainless steel in high tensile or shear-plane applications.
Steve E
Registered user
NO.
Most of the general use cap head bolts I use at work are 8.8's but I do use 10.2 , 10.4 and 12.4 bolts ranging from M6 to M24. Never assume that a cap head bolt or screw is high tensile. Look at the head and see what is stamped on it. As the OEM bolts do not have a head stamp, it is wise to replace a damaged OEM bolt with another OEM bolt for the same application. Just guessing what to use can lead to all sorts of problems.
I would not replace a shock absorber mounting bolt with a stainless bolt, as it may not have the shear strength to cope with the forces that are being applied to it.
Steve
i've learned something there
BTW when i said "i would have thought so", i was referring to the question of whether it was HT or not. not whether it was ok to use a stainless replacement. i'd use OEM.
I guess I already knew the answer. The replacement bolt arrived at the dealer today, and is now fitted (after the threads were cleaned out) - £6. Unfortunately the original was ruined when removing it.
Off to try the Wilbers out in the morning.
Off to try the Wilbers out in the morning.
