(5) Ford 9" 1/2"-20 Serrated Press In Wheel Studs , 2-1/4" OAL , 2.06 Under head length , .609 Knurl , 1.30 Thread length, Quick start nose , Zinc plated. 

Similiat to Speedmaster PCE408.1002 Wheel Studs but are 1/2" shorter.

Studs will fit all Speedmaster and Bous Axles . 

NOTE : These studs must be installed with a 20 Ton Press Minimum . Do not use Torque Impact Wrench type tools.