Thread size

[Ian Jones]

Front & rear tow hook, what’s the thread size? Looking at making a camera mount! Not at home so unable to measure my tow eye/hook

metric please

[Bushman]

I believe its a bespoke to Porsche 12mm buttress thread. I will check tomorrow at work, In daylight and when I have a set of thread gauges in my hand, just to be sure.

[John Whalley]

Could be tricky.  My 981 tow hook has a left hand thread.   

 

987?

[Bushman]

its a RH 20mm thread with a 3mm pitch and a 60 degree thread form. it has a root diameter of 16.5mm. A standard M20 has 2.5mm pitch with a root of 17.6mm.

should be straight forward to get a 20mm diameter bar screw cut in a machine shop to this thread. Another solution might be to buy a second hand one off ebay for a couple of notes, cut off the eye, then drill and tap a female M10 thread into the cut off end. then you can mount anything you like that bolts on via an M10 bolt.

hope this helps.

[Mk1]

Ian ... pp `Bushman`

 

I have a spare 987.2 towing eye available if required. Genuine item, used at the rear when on track (once) with my previous CR.

 

Also, for interest:

 

http://www.design911.co.uk/fu/prod135256/Rennline-GoPro-Camera-Tow-Hook-Mount-For-porsche-cars/

 

http://www.design911.co.uk/fu/pt62_2340_-cma81-cmo82/Porsche/Boxster-986-987-981/Tow-Eye-Hooks-and-Tie-Downs/