1-5pcs Brass Hex Lock Nuts Pipe Fitting 1/8" 1/4" 3/8" 1/2" 3/4" 1" BSP Female Thread Hexagonal shank Flange cap

1-5pcs Brass Hex Lock Nuts Pipe Fitting 1/8" 1/4" 3/8" 1/2" 3/4" 1" BSP Female Thread Hexagonal shank Flange cap

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