Where to get NPT plugs

[Ed]

Does anyone know where to get an internal-hex allen-type, steel NPT plug. I've searched at my local hardware and automotive stores but they only carry brass or galvanized plugs with a square head.

[civ104]

Try http://www.jegs.com/

They have a huge assortment of different AN and metric fasteners in their catalog.

[kinfish]

If you are looking for plugs for the intake manifold look in the yellow pages for a store specializing in hydraulic equipment. I bought SST plugs for my 240Z but had to order them. The threads are not "NPT" ...... they are "BSPT" which has slightly different thread counts. BS is not Bull $^!# it is British Standard. Plugs are made by Parker fittings. They do have different types and materials in the catalogue. Do not use brass due to galvanic action with aluminum.

[Ed]

Thanks for the info, I'm trying to find a plug that will fit the thermostat housing on an early 240. It's close to a 1/4" plug but not quite. What I have found so far is all standard thread pattern.

[2ManyZs]

Have you looked in the hardware section of Lowe's or possibly Home Depot? Never know what you can find there, they (Lowe's) usually have a lot of things you wouldn't expect. Can't vouch for HD, as I have a hard time finding anything in those stores, they are some of the most dis-organized places I've ever seen.......

[Bambikiller240]

I have been looking for BSPT plugs for the exhaust manifold in order to eliminate the "Air Galley" part of the Emissions System. My local full service hardware store carries a selection of BSPT fittings, but I cannot find one that will fit. Does anyone really know (for sure) what size plug is needed so I could have them order the right ones? Please!

I agree with Keith on Home Depot. I have a heck of a time finding things in those stores. "Just ask a clerk"? Ha! Try finding one that will give you an answer.

[Ed]

I've tried Home Depot and Ace hardware. They only have NPT and it has the square head. We don't have a Lowe's up here. I did find the allen head type at a performance automotive but they are also NPT. The thread count is very close but it will strip if I force it in there.

[ChrisA]

Hey Ed, I drilled the hole and tapped it for 1/4" NPT. I had the same problem as you. Couldnt find metric plugs here. Got a NPT tap from the local tool supplier. Worked well.

My .02

Chris