T-Works wing washer screws
T-Works have produced this line of wing washer screws for use with 1/10th onroad body shells. Super lightweight due to their design and the choice of aluminium, they come in 5 different colours, orange, black, red, blue and green. Different from your standard wing washer, these versions have the screw integrated for a simpler assembly. Sold in pairs, they come supplied with the lock nut.
Source: T-Works [rc-tworks.com]