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mrbigh · 07-01-2012, 07:58 PM

It is not the weld nut by itself, it will be the thin tin were it will be tack to. The material used to build the Prius body it is not of any heavy stock.
I have use these pen nuts in almost the same applications with very poor results.
A length of angle iron bolted through with reinforcement in the underside of the body is a much better option.
I used this method to hold the 240 Lb of extra batteries on the last 2 PHEV conversions and it's rock solid.
I'm including the first photo I could find, but tha same concept of attachment.

07-01-2012, 07:58 PM	#316 (permalink)
mrbigh AC-DC enthusiast Join Date: Nov 2009 Location: Long Island, NY Posts: 282 Dual-PWR PHEV - '04 Toyota Prius Kopper - '79 Bradley Bradley GT-II Thanks: 123 Thanked 54 Times in 37 Posts	It is not the weld nut by itself, it will be the thin tin were it will be tack to. The material used to build the Prius body it is not of any heavy stock. I have use these pen nuts in almost the same applications with very poor results. A length of angle iron bolted through with reinforcement in the underside of the body is a much better option. I used this method to hold the 240 Lb of extra batteries on the last 2 PHEV conversions and it's rock solid. I'm including the first photo I could find, but tha same concept of attachment. Attached Thumbnails __________________ . .. .. . ....... Prius Absolutum Dominium . ..........KOPPER PHEV conversion since Dec 2006.. . .... .Future EV . . . . . . . .CALCars # 27. . . . . . . . . . ..on the works now !! . . . . . . . . . . . . . . . . .. . ........ Last edited by mrbigh; 07-01-2012 at 08:15 PM..