Standard (double/triple) chainring bolts
thingiverse
Standard chainring bolts and nuts, designed for use with double and triple cranksets, are commonly found. A Solidworks model based on an Inventor design by KsCustoms at GrabCAD (https://grabcad.com/library/chainring-bolts-8mm) serves as the foundation. The thread pattern is M8 x 0.75, as described in Park Tool's Basic Thread Concepts page. This model would not be ideal for 3D printing; instead, it provides a reference point for testing assemblies. A 5 mm hex key is required to drive these bolts. Update: On July 7, the file was revised due to an error in the bolt thread model.
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