This is a single piece Skunk2 factory replacement part for the 520-99-0846 Lug Nut Set 20-pc Hard (M12 x 1.25)

Forged from ultra-strong 7075 aluminum, Skunk2’s Hard Anodized Series Lug Nuts would fit most applications that utilize the M12 x 1.25 thread pitch i.e. Mitsubishi, Scion, and Toyota.
 
Skunk2 Forged Lug Nuts feature knurled ends for maximum grip, hard anodizing for superior corrosion resistance and are extremely lightweight. Skunk2 Lug Nuts have also been proven on the race track for over a decade so you can be assured of both quality and longevity. Industry-leading 23.5g each Skunk2 Lug Nut helps reduce unsprung weight but without compromising strength. Each lug nut also features a perfectly tapered end for maximum wheel-to-lug contact as well as durable threads for added longevity.

2013 - 2016 Scion FR-S (Base)