Includes the following: 
AN Series Grade 6 Drilled Bolt 1/2" x 3.75" Length 
Tall slotted 1/2-20 Castle Nut 
KMSP Large Safety Pin 
Six .060" Stainless Steel Washers 
Two .030" AN Washers 
Steel PRC Style Spacer
 
Fits 2008 and Newer PRC karts, Charger Prodigy, as well as any kart currently using a 3.75" length kingpin