https://www.24mx.co.uk/product/bolt-m6-allen-large-headscrew-kit_pid-024-90612?gclid=CjwKCAjws--ZBhAXEiwAv-RNL3feQ288jGazJSWh0sAypKiz3rCsW-XGjrip7KKHKXAcHFgTYOAmIhoCYcAQAvD_BwE&gclsrc=aw.ds
I've used these and they are a direct fit. Much more available too.
436 added, Jamie - Aberdeen
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