Check the listing for details. Brass G 1-1/4" Pipe Fitting Flange Hex Locknuts with Washer. Condition: New. Listed at 15.00 USD. 1. APPLICATION RANGE: This versatile lock nut is suitable for pipe securing in residential and commercial settings, industrial piping, and other water, gas, and oil pipe processing systems.2. SIMPLE OPERATION: Easy to use, it can be screwed onto the corresponding G-threaded male pipes or fittings. The hexagonal design allows for easy tightening and loosening with a wrench. Ensure proper alignment and thread engagement for optimal performance and sealing.3. DURABLE DESIGN: Crafted from brass, this hexagonal lock nut is meticulously crafted for high hardness, resistance to wear, corrosion, rust, and aging, ensuring long-term use. This lock nut is used to connect G-threaded pipes and hoses, locking the two threaded joints together for a secure, leak-proof connection.