andypugh2000

Hi guys,

What size are the bolts that hold the front 4 pot calipers onto the impreza?? are they M12 and what type of thread are they??

Second question does anyone know in the surrey area where I can get 4 of these slightly longer (fitting brake conversion) around 50-60mm??

Thanks in advance

AP

st3v3

M12 is normally associated with 1.75mm pitch thread as in M12x1.75
This is a standard thread size.

andypugh2000

Brilliant thanks mate

andypugh2000

That is the std thread pitch for an M12 bolt but unfortunately the ones i am after are around 1mm thread pitch, getting them measured and made tomorrow but a toolmaker
Try getting hold of special bolts, its hard work

st3v3

lol im a thread grinder by trade m8 i know all there is about bolts and threads,BA,unjf,Mj,Iso,Acme,Trap,Whitworth,special forms,Spec aerospace forms,Modified square forms,yada,yada.

If you have no joy let me know the outside diameter,and the pitch and ill see if i can help out.

andypugh2000

Thanks mate for your offer but unless my mate gets hit by a bus before the weekend i should be sorted, he is the same as you in his bolt/thred knowledge

st3v3

no problem m8ty