I have a HF tire inflator set up for presta valves on mountain /road bikes and the gage was never even close to working correctly. I found a digital gage on Zoro with a 1/8npt thread and measured what I could on the HF POS. I thought 1/8"npt was it. I wrapped the new gage with some Teflon tape and went to thread it in, but it fell into the threaded hole. The old gage (now that it's out) measures .430" at the bigger end of the taper. The 1/8"npt measures .400". Is the HF a BPT or something? Is there an adapter? Thanks.
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HF threads vs everyone else...
- Thread starter LarryFahn
- Start date
2001ZR2
Well-known member
Bet it's a metric thread like M12x1.5
It is tapered like a pipe thread fwiw.Bet it's a metric thread like M12x1.5
KnurledNut
Well-known member
Some of those gauges are 1/4 BSP.