(L1) 2.300" Thread Length, (l2) 3.150" Under Head Length, (L3) 1.200" Knurl Length, with a 5/8" - 18" thread size and a Knurl Diameter or Seat of .660", ARP Speed Studs 300-7716.
The engineers at ARP created the ultimate oval track competition wheel stud that facilitates accurate wheel positioning and quicker release/tightening of lug nuts.
ARP’s new “Speed Studs” (and companion “Speed Nuts”) are used by a large number of NASCAR teams in Sprint Cup, Nationwide and Camping World Truck series.
Made from heat-treated 190,000 psi chrome moly steel, ARP Speed Studs feature precision J-form threads, exclusive nut-starter and bullet shape radius that minimizes cross-threading, shot-peening, special baked-on dry film lubricant, and double magnaflux inspection.
A new head design fits the registers of all popular hubs without grinding, and studs are available in 27 underhead lengths for optimum thread engagement.
