Keep your studs firmly in place, even on thin OEM tracks with Fat Head studs! These studs are designed with oversized heads for up to 36% more track contact area. Put a stop to stud pull-through on all track types with a flush fit for smooth, free-turning operation. Each stud features triple-stage brazing to combat abrasion and impact in a stud that is 20% lighter. Stud Length: 1.345". Head Diameter: 1.160". Inside Length: 1.534". Overall Length: 1.616". Quantity: 36.