5/8″-18 Chrome Moly Studs
• Threads are rolled for maximum strength
• Internal 1/4″ hex to facilitate installation
• Zinc Phosphate coated to resist corrosion
• .686″ O.D. x .775″ long shoulder to properly locate wheel
Rotor Hat & Wheel Thickness Determines Proper Shoulder Length & Washer Thickness
Shoulder should exceed combination but not beyond washer
Thin Head Self-Locking Nuts
• Ensures positive retention of wheel stud
• Provides additional backside clearance
• 15/16″ wrench size
.250″ Thick Aluminum Washers
• Reduces marring on wheel face from flanged lug nut
• Keeps lug nut from bottoming-out on stud shoulder
5/8″-18 Flanged Lug Nuts
• Provides secure clamping force
• 15/16″ wrench size
Other Shoulder Lengths
0.875″ – A1037
0.875″ – A1037MD (For Strange 2 pc Pro Stock axles)
1.188″ – A1038
1.500″ – A1039
1.875″ – A1041
