Because races can be won or lost in the pits, the engineers at ARP set about to create the ultimate oval track competition wheel stud that facilitates accurate wheel positioning and quicker release/tightening of lug nuts. They're made from heat-treated 190,000 psi chrome moly steel and feature precision J-form threads (formed after heat-treat for improved fatigue strength), exclusive nut-starter and bullet shape radius that all but eliminates cross-threading, shot-peening, special baked-on dry film lubricant (reduces possibility of galling and assures consistent clamp loads), and double magnaflux inspection. The head design fits the registers of all popular hubs without grinding, and studs are available in 31 underhead lengths to provide you with the optimum thread engagement for your particular setup.

The finest studs available! Available in 5-piece packs; custom sizes available.

Note: All Speed Stud applications fit Stock Car Products and Speedway Engineering Hubs without grinding or modifications. The products listed in this section have been designed to comply with NASCAR rules. No specific endorsement by NASCAR is implied.

Note: This kit has a black oxide finish.

Features and Benefits:

• Bullet-shaped nut-starter nose
• 190,000 psi chrome moly
• Precision J-form threads rolled after heat-treat
• Baked-on dry film lubricant
• Head fits all popular hubs without grinding

Details:

• Material: 8740 Chrome Moly
• Finish: Dry Lube
• Kit Style: Wheel Stud
• Thread Size: 5/8-11
• UHL: 4.031 Inch
• Thread Length: 3.220 Inch
• Set Qty: 5
• Knurl Diameter: 0.685 Inch
• Knurl Length: 0.750 Inch
• Package Type: Skin
• Kit Type: Stud

Fitment Notes:

• Make: Circle Track
• Application: Speed Stud - coarse thread, 4.031 UHL