Cat parts are manufactured to precise specifications and are built for durability, reliability, productivity, less environmental impact, and reuse Mount Type: Mushroom Mount Overall Length (mm): 31.8 Overall Length (in): 1.25 Sleeve Length (mm): 25.4 Sleeve Length (in): 1 Head Outside Diameter (mm): 50.8 Head Outside Diameter (in): 0.079 Pilot Outside Diameter (mm): 34.3 Pilot Outside Diameter (in): 1.35 Inside Diameter (mm): 13.5 Inside Diameter (in): 0.53 Standard Bolt Size: M12 CAT SOCIAL