GOLD PIN SEAT 50mm LONG EXTENDED WHEEL STUDS BOLTS FIT NISSAN 350Z M12X1.25X50 Knurl Head: 14.3mm 10pcs Length Size: 50mm Shank Length Knurl Size: 14.3mm Thread Size: 12 x 1.25 x 50mm Bolt Type: Pin Bolts -- Grade 10.9 Make: Nissan 350z