Female-End Leveling Mount, Leveling Mount Type Swivel Boltless, Base Dia. 2 1/2 in, Height 1.38 in, Load Capacity 1,200 lb, Thread Size 5/8 In.-11, Construction Stainless Steel, Hex 7/8 in, Includes Jam Nut, Connection Type Boltless, Bolt Length Not Applicable, Finish Plain, Base Material Acetal Homopolymer, Thrust Pad Material Elastomer, Bolt Material Not Applicable, Swivel Angle 15 Degrees , Base Shape Round, Series Level-It, Base Delrin(R) w/ Non-Skid Pad, Socket Material 303 Stainless Steel