Being that:
I'm 39 years old and probably not hip and cool.
This is my first import to modify.
The last car I put a set of mag wheels (yes that's what we called them back in the day) on was my 69 Mustang in 1986.

I need some advice from those in the know. I just bought a set of Buddy Club P1 16x7 for my ek and I don't have a clue what kind of lug nuts to buy. Sure I know the thread pitch and diameter but I don't know what's good or what sucks.

The car is silver and the wheels are matte black and I want some type of wheel lock, so with that in mind can somebody help an elder out please.

Edit: Since I'm older now with a house, family and a good job I actually have money so I'm not necessarily looking for the cheapest thing available.

 

Aftermarket wheels, you need to use a taper/conical seat nut.

McGard and Gorilla are good brands. Avoid the blingy AL stuff, as they tend to fade and not last as long.

I run McGard spline drives, with an included lock. Like this, but my set included locks as well: