If you require spacers and longer studs the wheel studs you need are from 92-86 Mazda RX-7

Item Number: 610-341
Description: Wheel Studs
Brand: DORMAN
Application: Mazda 92-86
Type : Serrated Stud
Thread : M12-1.5
Knurl Dia. : 13.08mm
Length : 52mm
Shoulder Length : 25.5mm

Yes you will have to grind off about a 1/16" at the most on one edge to get them past the hub as mentioned...it's no big deal. You just need to make a little flat spot on the edge...dremel, file, beltsander all work fine.

Scott 2000 Contour SVT #1464 Mustang Dyno: 171.6hp/145.3lb Dynojet Dyno: 171.1hp/148.9lb 1989 20th Anniversary Turbo T/A "Indy 500 Pace Car" #1376 of 1550 All Original, 46k with a few mods 2002 F150 SuperCrew