Eyelet size for racks
09-11-20, 06:41 PM
#1
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Eyelet size for racks
What is the screw size for those eyelet holes for racks and fenders on drop outs and frame?I lost my screws acorn nuts.Thanks in advance.
09-11-20, 07:03 PM
#3
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Some racks as well as some frames have a 6mm hole/thread for the drop out mount. One measurement is worth a lot. If you have no measuring tools but have a mounted bottle cage it's bolts are nearly always a 5mm. Remove one bolt and test insert into the rack/eyelet and judge the fit. Andy
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AndrewRStewart
AndrewRStewart
09-11-20, 07:07 PM
#4
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Some racks as well as some frames have a 6mm hole/thread for the drop out mount. One measurement is worth a lot. If you have no measuring tools but have a mounted bottle cage it's bolts are nearly always a 5mm. Remove one bolt and test insert into the rack/eyelet and judge the fit. Andy
09-13-20, 09:05 PM
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Most eyelets are 5mm x 0.8mm, as noted above. Some are 6mm x 1mm. Some are unthreaded. Some may even be British Whitworth thread. It depends on your bike, where it was made, and how old it is.
