ITEM NAME:5pcs Copper Hex Head Main Jets 175 for PWK Keihin FCR Carb Carburetor Description: - Brand New Hex Type Carburetor Main Jets - Size: 175 - Material: Copper - Application: for PWK Keihin FCR, KOSO, OKO and PE of the carburetor. - Easy to install. Specification: - Length: 16.5 mm / 0.65 inch - Cap Length: 11.5 mm / 0.45 inch - Thread Length: 5 mm / 0.2 inch - Nut Diameter: 6 mm / 0.24 inch - Thread Size: M5 x 0.8 mm Package Included: 5 Pieces 175 Main Jet Kits.Application: for PWK Keihin FCR, KOSO, OKO and PE of the carburetor. - Size: 175. 5 Pieces 175 Main Jet Kits. - Material: Copper. - Thread Size: M5 x 0.8 mm.