Lug nut / wheel lock questions

[jaymode]

Somehow I managed to lose a second stock wheel lock, and I lost the order form for them. I was thinking that I could switch them out for some different locks/lugs. I was thinking about getting these locks:
http://www.evasivemotorsports.com/merchant2/merchant.mvc?Screen=PROD&Product_Code=bulllock01&Category_Code=L1

Will they work with the stock racing harts? I know we need M12X1.5mm.

Any other ones I should look into?

The other question I had is if I need to get another set of lugs for the steelies I use during the winter?

[Kansei]

McGard makes some nice ones.. they make the OEM ones too, but they sell stuff at like pep boys as well.

[jaymode]

I found the order form so I can just get another stock one.

Does anyone know about the stock lugs and steelies? I keep seeing on websites not to use aftermarket lug nuts with steel rims because of a different seat? I would assume the MSP wheels have the same seat as other aftermarket wheels?

[Kansei]

Yeah there's a difference between wheels that have a conical seat (stock alloy wheels) and a flat seat.. I guess most steelies have a flat seat?