tie downs up front

anyone ever install tie downs like the factory ones in the rear of the bed to the two bed bolts up front near the cab?
are those bolts screwed to the frame or is there a nut under there? I need to haul a motorcycle and I don't trust those plastic side tie downs. Thanks

 

The bolt comes out like the other ones no nut on the bottom the only dont fall you will have to cut the washer off, i have extra d-rings in my truck.

 

I installed the factory ones on the vertical sides as the instructions show as I didn't want to cut my bed mat to make them work. I wouldn't trust the bed rail system to hold a bike just with straps to the tie downs either. There are some products that are like wheel chocks that mount to the rail system that seem to work. Do a search on here and you ought to find them.

Here's the link from this sight.
http://www.tacomaworld.com/forum/technical-chat/4838-cheap-free-mods.html

I ordered the factory ones when the dealer sent me a coupon book for 20% off. Here's some factory ones.
http://toyotapartspeople.com/Search...70021&year=08&productdesc=D-Rings+-+Tie+Downs

 

FYI, rated for 200#