tubeless rim , nut specification

hi

 

 in the sip tubeless rim i have found 2 different nut.

i can't understand if with the first one i have to use plane and glover washer, and with the second one no washer.... or i have to use it with both model of nut?

 

thanks

first model with washer

[URL=http://img64.imageshack.us/i/imgp2762.jpg/][IMG]http://img64.imageshack.us/img64/8558/imgp2762.jpg[/IMG][/URL]

 

second model without washers

[URL=http://img522.imageshack.us/i/imgp2763.jpg/][IMG]http://img522.imageshack.us/img522/7914/imgp2763.jpg[/IMG][/URL]

 

up

 

no one ?!?!?!?!?!?!?!!?