Similar to this topic- does anyone else have the PFP O-rings break or disintegrate? I finally replaced my original o-ring after maybe 2 years because only 20% of it was still present. I bought a pack of new ones, put one in, and within a couple rides, it's already split and starting to...
Big pump bolts (and B pipe manifold) should be M10x1.25, which is the less common, fine pitch. Most M10 hardware is M10x1.5
The M6x1.0 and M8x1.25 are all standard course pitch.
Onlinemetals.com
http://www.onlinemetals.com/merchant.cfm?pid=12916&step=4&showunits=inches&id=312&top_cat=1
Definitely use stainless. Lasts forever, and thinner wall thickness means more water flow.
If you PM me, I have several coupon codes for them, too...
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