These low profile wheel nut lugs are used in the DPR bolt on wheel spacers. They are 1.25P thread pitch and priced per each nut. They will recess completely into the body of a 15mm spacer. They stand 12.3mm tall and take a 19mm socket. Note these will NOT fit the G-racing wheel spacers as they require a 17mm socket.

D2 Racing coilovers - super racing series
Oil adapter thermostatic control
Pulley - Toyota Celica Corolla MR2 1.8L
GFB SR20DET 200sx Crank pulley (underdrive) 