Avid M4 domed titanium droop screws
Coming from Avid are domed M4 titanium droop screws for most of today’s 1/10th touring cars. The M4x8mm screws are domed at the end to help prevent digging and grabbing of the chassis while the lightweight billet 6Al-4V titanium material makes for a very low weight of only 0.25g per piece. The screws are broached with a 2mm allen head on the outer side for easy installation and removal an they come in packs of four to outfit one touring car.
Source: Avid [avidrc.com]