Jump to content
Mechanical Engineering
  • 0

Solution for attaching bicycle brake pads



I've lost a small screw from my bike for my OBE cartridges. It seems to be a common problem on road bike braking systems and so does stripping the screw heads.

Its a very small screw ( almost a grub screw). The supplier confirmed that its a M6 x 4mm long screw.

They either come loose or I end up rounding their heads, which is even worse because it makes changing the brake pads a nightmare. (I am using the right size Allen key) 

I'm looking for a different fastener, perhaps a bigger head or recess so that I don't round them. 

The screws are 4mm long, so not many stainless steel options.

Can someone recommend a solution please? 

Link to comment
Share on other sites

6 answers to this question

Recommended Posts

  • 0

If you are serious about this, why not design a better screw and have a machine shop make some for you?

Link to comment
Share on other sites

  • 0

Be VERY careful what you are screwing them into....if it is an aluminium carrier, you'll get some serious galvanic effects with stainless, particularly on a pushbike!  I think I know the screws you mean and on mine they ARE aluminium!

I would have taken a step back and gone for some good-quality graded-steel cap heads. they won't have the same galvanic issues as with stainless and you won't round the drive holes/cross head... 

Fortunately M4x6LG is a standard size.

Good luck!


Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Answer this question...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Join Mechanical Engineering network

    Join us (login) to get full access : Please sign up to connect and participate.

    To download files...please login

  • Who's Online   0 Members, 0 Anonymous, 7 Guests (See full list)

  • Create New...