Thread: TD5 sump plug query

Could try and find a stepped 17mm drill bit...wouldn’t be stocked in too many places.

Maybe a M18 Tao will go through the existing hole than use a M18 bolt as you plug

Maybe a sump from a wreckers??

17.0mm Reduced Shank Drill Bit - 011_Drill Bits - Metal, 007_Reduced Shank Drills, 001_Metric - Product Detail - Sheffield Group

17mm - 1/2" HSS Reduced Shank Drill Bit

The sump plug head is 17 mm , so the thread size and pitch will be smaller , probably around 15-16 mm , can't remember , pitch will probably be 1.5 mm

For your application a Keensert would be more suitable.

Heli-Coil® | Keensert® | Keysert® | Acme | Comparing threaded inserts

http://www.clarendonsf.com/products/...ensert-inserts

Thread Repair Using a Keensert Insert - YouTube

The plug appears to be M16 x 1.5, shouldn't be hard to get a suitable insert for.

Originally Posted by bee utey

The plug appears to be M16 x 1.5, shouldn't be hard to get a suitable insert for.

Yes, just checked my brand new replacement plug - M16 x 1.5.
A 17mm thread would be very unusual.
(The new plug is just like my old one, except the new one has sharp points on the hex head... )

Just had a look at the Acme website: An insert with a M16x1.5 internal thread insert has an external thread of M22x1.5. The tapping drill size is 20.50mm. So, you're looking at some pretty expensive hardware. Might be cheaper to take it to someone who already has the right gear or try to find a mobile thread repair business.

Maybe you could retap the hole and put an oversize plug in there