Q

My valve shaft is 5/16”; what size is the hole in this knob?

Valve Knob, Fits MHP / Holland / Patriot, (2 Required)
$3.70
A
This is a standard 8 mm hole, which is just about exactly 5/16." This knob will fit on your shaft. The more important thing is the orientation of the knob.
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Answered by Andrew on Sep 4, 2019
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