Check the listing for details. 2Pcs BSPP Cast Pipe Fitting Hex Locknut Nickel Plated Copper G1-1/4. Condition: New, Made in China. Listed at 10.92 USD. What will I get?The hex lock nut, provides here, is in size of: Screw Type: BSPP; Thickness: 4.5mm /0.18"; Thread Size: G1-1/4; Width Across Flat Size: 45mm /1.77".What is this?The lock nut is made of nickel plated copper and the locknut is resistant to corrosion and safe for high or low temperatures(-30~250℃). O-Ring Groove Cast Pipe Fitting incorporates BSPP threads to securely fasten two fittings together, promoting stability and reducing vibrations for improved performance.Is there any advantages of the product?This locknut is engineered for use in threaded pipe fittings, enhancing the connection by creating tighter seals than straight threads. It effectively prevents leaks and ensures the stability of the threaded joint for reliable performance.