These wheel nuts from Grayston are specifically designed to fit classic Wolfrace slot mag wheels which require a sleeve fitting with a tapered washer.
Available in different thread options:
Option 1: 1/2" UNF thread with 11/16" (17.4mm) OD sleeve
Option 2: M12 x 1.5 thread with 41/64" (16.3mm) OD sleeve
Option 3: 7/16" UNF thread with 11/16" (17.4mm) OD sleeve
Option 4: 3/8" UNF thread with 41/64" (16.3mm) OD sleeve
Option 5: M12 x 1.25 thread with 41/64" (16.3mm) OD sleeve
Option 6: M12 x 1.5 thread with 11/16" (17.4mm) OD sleeve
Option 7: 7/16" UNF thread with 41/64" (16.3mm) OD sleeve
Option 8: M14 x 1.5 thread with 11/116" (17.4mm) OD Sleeve