Pitch Gauge

how do i fix a cross thread radiator?

I have the following problem: one of my one pipe steam radiator is missing an air vent valve. I bought one air vent valve but when i tried to install it the valve tail does not go in. Could it be that the radiator inside threads are cross thread, If they, are how can i fix this?

Before you go too much further, i would suggest that you make 100% sure that you have matching threads. There is a thread pitch gauge available at the larger hardware stores. This will tell you precisely what thread form you have. If they do match, you can buy a thread tap from your hardware store that will start the threads and repair them as you screw the tap further in. I think it will be pipe thread, and a pipe tap does not go all the way down, it will eventually bottom out, so dont use too much force while threading in the tap.

Good Luck

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STIHL 3 8 Pitch PS RACING CHAIN 24 inch Cannon 80 drivers full chisel 050 gauge
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STIHL 3 8 Pitch PS RACING CHAIN 24 inch Cannon 81 drivers full chisel 050 gauge
STIHL 3 8 Pitch PS RACING CHAIN 24 inch Cannon 81 drivers full chisel 050 gauge
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STIHL 3 8 Pitch PS3 Picco chain for 18 inch bar 62 drivers full chisel 50 gauge
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OREGON 24 inch chainsaw bar Stihl MS262 MS660 3 8 Pitch 050 Gauge Power Match
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OREGON 20 inch chainsaw bar fits Stihl MS361 MS660 3 8 Pitch 050 Gauge Pro
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OREGON 28 inch chainsaw bar Fits Stihl MS261 MS660 3 8 Pitch 050 Gauge
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50 Bars Stihl 16 inch bar for MS170 MS251 3 8 Pitch 043 Gauge 55 drivers
50 Bars Stihl 16 inch bar for MS170 MS251 3 8 Pitch 043 Gauge 55 drivers
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STIHL 3 8 Pitch PS RACING CHAIN 24 inch Cannon 84 drivers full chisel 050 gauge
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Stihl 41 inch chainsaw bar for MS880 084 076 075 090 070 404 Pitch 063 Gauge
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STIHL 3 8 Pitch PS3 Picco chain 58 drivers full chisel 050 gauge
STIHL 3 8 Pitch PS3 Picco chain 58 drivers full chisel 050 gauge
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Stihl 36 inch chainsaw bar for MS261 MS660 3 8 Pitch 063 Gauge Yellow Label
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STIHL 3 8 Pitch PS RACING CHAIN for 28 L Cannon supermini 87 drivers 050 gauge
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STIHL 3 8 Pitch PS3 Picco chain 84 drivers full chisel 050 gauge
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STIHL Husky 3 8 Pitch PS3 Picco chain 18 inch 68 drivers full chisel 050 gauge
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Stihl 25 inch chainsaw bar for MS261 MS660 3 8 Pitch 050 Gauge
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Stihl 25 inch chainsaw bar for MS261 MS660 3 8 Pitch 050 Gauge Yellow Label
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OREGON 18 inch chainsaw bar for Stihl MS261 MS660 3 8 Pitch 050 Gauge Pro
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STIHL 3 8 Pitch PS RACING CHAIN 20 inch Carver 71 drivers full chisel 050 gauge
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STIHL 3 8 Pitch PS3 Green CHAIN 20 inch Carver 71 drivers full chisel 050 gauge
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NEW Cannon Superbar 60 inch chainsaw bar 404 pitch 063 gauge
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STIHL 3 8 Pitch PS3 Picco chain 20 inch Cannon 72 drivers full chisel 50 gauge
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STIHL 3 8 Pitch PS3 Picco chain 86 drivers full chisel 050 gauge for 28 inch C
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Cannon Husqvarna H1 SUPERMINI 18 inch chainsaw bar 3 8 Pitch 050 Gauge Husky
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