Tap Size Assistance

[MichaelT333]

A tap can work, I used one just a few hours ago to clean up the threads on a 30 year old Land Cruiser I’m working in products for.

It’s not ideal, but absolutely can work. I’d just not give it more than a few pounds of torque.

Thread chasers are preferred.

edit: you can also make your own chaser with a bolt and cutoff wheel or dremel. Just add slots that are angled running perpendicular to the threads. You want the angle to create sharp points that turn into the hole when the bolt is tightened.

Just takes a minute to make and is essentially free.

I add these little slots to all my woodworking counterbore guide pins as it helps clean out glue in holes. Super useful!

You are correct it “could” work if you get it lined up absolutely perfectly however from his original post he said he damaged the first few threads, so without the first threads to try and line it up there is no way he gonna get it perfect. And won’t be able to feel if he is cutting away good threads

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[azbobver]

Didn’t you say the bolt was 3/8? That is a metric set. I am not sure if the bolts underneath are metric or standard. Maybe someone here will know

It has the 3/8 16 size I need.

 

[azbobver]

Thanks to everyone who replied. I used a thread chaser to repair the threads and all is good now!

 

[58Willys]

Thanks to everyone who repaired. I used a thread chaser to repair the threads and all is good now!

Nice! Thread chasers are awesome.

 

[fourfa]

Didn’t you say the bolt was 3/8? That is a metric set. I am not sure if the bolts underneath are metric or standard. Maybe someone here will know

where it says “UNC UNF and metric” - UNC/UNF are “unified coarse/fine” aka standard aka English aka imperial etc

https://en.wikipedia.org/wiki/Unified_Thread_Standard

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