Product_description: ['Specifications: Item : BCR-1/2-X Item Name: Series BCR BCR-X Non-Metallic Bushing, Stud Type, Screwdriver Slot Configuration: Non-Metallic Bushing Drive Type: Screw-Driver Slot Type: Sealed (D) Roller OD: .500 Inch (B) Roller Width: .375 Inch (A) Stud Dia.: .190 Inch (M) Stud Length: 5/8 Inch (S) Eff. Thread Min.: 1/4 Inch (T) Thread UNF Class 2A: 10-32 (P) Lube Fitting Size: 1/8 Min Boss. Dia.: 19/64 Recomm. Bore: .190 Inch McGill P/N: BCF- 1/2'] (Page 1)