The lengths of the screws are embedded in the Suzuki part number, so you can usually figure them out from a fiche.
Here's an online fiche with real part numbers:
http://flatoutmotorcycles.com/fiche_select.asp
As an example, on the clutch cover on a 1978 GS750, it appears to use two 6mm thread X 55mm length screws and eight 6mm thread X 20mm screws.
The 6X55mm screws:
Part #: 02112-06557
The 6X20mm screws:
Part #: 02112-06207
Note the first four digits in the second half of the part number.
In case you're wondering, you always leave the head out when you measure fasteners. The diameter is the width of the threads (NOT the size of the wrench or bolt head), and the length is the shank measured from under the head to the tip.
Phillips head (cross head) screws are just sick and wrong -- a terrible joke. I hate them.
Standard 6mm hex head bolts have 10mm heads, and are too big to be used on GS cases.
Allen head stainless steel screws (with antiseize applied) are the only way to go, unless you must have absolute historical accuracy. Regular steel rusts instantly.
You can also buy stainless allen head screws in bulk from several places. My favorite is McMaster-Carr:
http://www.mcmaster.com
I've also ordered from MMS:
http://www.mmsacc-stainless.com/
2008.12.22 edit to add more BWRINGER info
A couple of updates to that:
Another great source for stainless bolts is: http://boltdepot.com
Suzuki uses standard metric thread pitches up through 8mm:
3mm x .5
4mm x .7
5mm X .8
6mm X 1
8mm X 1.25
When you get to 10mm fasteners, Suzuki usually uses fine pitch threads:
10mm X 1.25
12mm X 1.25
But when you get to fasteners this size, you don't really want to replace them with stainless anyway -- best to stick with the original fasteners. Stainless is strong, but brittle, and it's not a good idea to use it in heavily loaded suspension, frame, or brake components.
Suzuki brake banjo bolts are 10mm X 1.0mm threads.
Quote:
Originally Posted by focus frenzy
don't forget to make her pay for them!!
I was hoping it would give the size like the parts list does for the case bolts but it didn't.
I am pretty sure someone here knows what the sizes are off the top of their head, so you could go to a respectable hardware place instead of Suzuki as Suzuki is proud of their bolts.
one place I checked list the main bolt as not being available any more.
Comment