Thread Sizes: 5/8-11 Material: Stainless Steel Pressure: Heavy End Pressure Start (lbs.): 5 End Pressure Full (lbs.): 10 Body Length: 1" Nose Diameter: .373 Projection: 5/16 Locking Element: No Knurl Diameter: 1-1/8 Knurl Thickness: 13/32 Category: Heavy Pressure