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Selecting An Appropriate Bolt
I had a bit of an adventure when one of the two handlebar-fixing bolts
on my Deda Murex quilled stem decided to snap with a rather impressive cracking noise. I somehow didn't crash and happened to be only about seven miles from home. I got slowly home holding the stem with one hand and one of the brake levers on the dangling handlebars with the other hand. (This is not recommended to the reader.) I see that the bolt is a M6x18 tapered cone head Allen cap screw with pressed-on washer. The stem is two months shy of 15 years old, but I don't want to have this happen again. Looking on eBay, I see quite a few appropriate bolts, but I'm not sure what is optimal. Can anyone help? Everything seems to be Grade 5. Is that safe enough, or do I really want to (somehow) find Grade 8? Many are titanium. Is that a better choice than the more-common steel? Or should I look for stainless steel? I am always happy to save a few grams, but not if that's a significant risk. Advice welcome! Art |
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