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Old 09-13-2017, 10:36 AM
Mark McM Mark McM is offline
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Join Date: Jun 2006
Posts: 4,817
Originally Posted by Dead Man View Post
Are you concerned with the screws pulling out, or something?

I'd put $100 on 4 faceplate screws having higher pullout strength than any part of the stem's sheer strength.

Screws are strong, with regard to shank direction loads.

When open face stems were first introduced, many used a two bolt face plate. These were found to be prone to bolt failure, and if a single bolt failed, the handlebar completely detached from the stem (I witnessed several failures of this type). 4 bolt face plates are now the norm. Not only are these less likely to fail, but it requires a failure of at least two bolts before the handlebar detaches.
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